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A comparative analysis of land, labour and gender in a communal area and fast track farm in Zvimba Rural District, Zimbabwe

  • Authors: Chinomona, Perpetua
  • Date: 2024-04-03
  • Subjects: Land reform Zimbabwe Zvimba District , Patriarchy Zimbabwe , Feminism Zimbabwe , Sexual division of labor Zimbabwe , Decision making , Culture
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/434612 , vital:73089 , DOI 10.21504/10962/434612
  • Description: This thesis provides a comparative analysis of gender, land, and labour between two different types of farming sites in rural Zimbabwe, namely long-established communal areas and the more recent Al fast track land reform resettlement areas. More specifically, the focus is on Kanzou Village and Stratford fast track resettlement farm respectively, located in Zvimba District in Mashonaland West Province. The study focuses on the period from the year 2000, the year in which the fast track resettlement programme was launched by the government. The thesis examines in particular the status and experience of women with regard to land acquisition, access and security as well as the division of labour (including assets, inputs and labour-time) in the spheres of production (i.e., agriculture) and social reproduction (i.e., the domestic sphere). This includes highlighting the power relations existing between men and women in both spheres, in the light of prevailing systems of patriarchy. Analytically, the thesis is framed in terms of feminism, drawing upon the complementary insights of Third World feminism and socialist feminism. In seeking to capture the perspectives and practices of men and women in the two sites, the fieldwork for the study entails a qualitative methodology. The findings of the research demonstrate the existence and relevance of patriarchal systems with respect to land and labour in Kanzou Village and Stratford fast track farm, with key commonalities appearing across the two sites with reference to the multiple ways in which women are disadvantaged and disempowered. Therefore, gender bias and inequality in land and labour are exhibited by the fact that men have, for instance, easier access to land, less involvement in labouring activities, control over a higher proportion of household income and a disproportionate level of power in the household. At the same time, there are certain differences between Kanzou Village and Stratford fast track farm around questions of gender, land and labour, but these are differences in degree rather than kind. Perhaps more important in explaining the differences between the two sites, and indeed differences within each site, are other variables. These variables include marital status, form or marriage (for example, customary or civil marriages), age and gender. By considering these variables as well, the thesis shows the importance of unpacking the notion of ‘woman’ to reveal the variegated and differential experiences of different categories of women in rural Zimbabwe. , Thesis (PhD) -- Faculty of Humanities, Sociology, 2023
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  • Date Issued: 2024-04-03

Study of bias within CCMA Commissioners decision making processes

  • Authors: Gregersen, Peter
  • Date: 2023-12
  • Subjects: South Africa. -- Commission for Conciliation, Mediation, and Arbitration , Mediation and conciliation, Industrial -- South Africa , Ethics , Decision making
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/65622 , vital:74206
  • Description: The South African law places a duty on judicial officers; to “protect the Constitution and the human rights entrenched in it, and will administer justice to all persons alike without fear, favour or prejudice, in accordance with the Constitution and the law. CCMA rulings have consistently come under review for “gross irregularities”, “misconduct” and bias as set out in section 145 of the Labour Relations Act. The Engen and Monare cases confirm that Commissioners’ decisions are prone to personal bias regardless of legal process designed to ensure the contrary. The linkage of bias, prejudice and discrimination has not been fully explored in a quasi-judicial sphere within South Africa. The key objective of the research was to determine the prevalence of bias and identify legal and psycho-social factors impacting Commissioners’ decision-making within the quasi-judicial body of the CCMA. A secondary objective includes the development of a mechanism for reducing bias decision-making. There are primarily two aspects at play when one considers bias within the ambit of commissioners’ decision-making. Firstly, the legal judicial side, section 145 of the Labour Relations Act and secondly, a psycho-social side of bias that effects all people. The formulation of decision making in a psychological sphere is fraught with many obstacles such as framing effects, heuristics, forecasting and indeed decoding or understanding of the problem and solution to be found. The relevance is that bias can be defined by a rationally explained theory that has been irrationally applied. A biased outcome causes a reaction. Due to the reciprocal nature of the reaction of the prejudice, bias can be seen as centred on an event or practice which would give it an ontological value based on biasness being an event. One would then classify bias as a sub-group of a form of discrimination which is in itself a sub-group of prejudice that directly effects social justice and is impacted by stereotypical attitudes and social dominance. The purpose of this research was to show the prevalence of bias in a semi-judicial state sanctioned body and the impact that ineffective, contradictory rules and laws have on the business community at large. In addition, a mechanism to be implemented that would reduce the bias phenomena from the CCMA and business organisations. This research was undertaken to uncover trends and provide insights into bias. During the conciliation/arbitration process various rules are ignored. Therefore, the gleaned insights from experts assisted in identifying whether the systems that are in place need to be improved upon and if manipulation of the processes does take place. As this research was the study of bias within the legislative framework of the CCMA the primary method of research was a deductive survey supported by a literature review and an archival research. In addition to the quantitative research a qualitative research approach using a semi structured interview was used for the study. Non-probability purposive expert sampling including six legal practitioners, au fait with CCMA procedures, were interviewed to determine their experience and views on Bias within the CCMA. Due to the technical expertise required in various Labour Laws, incorporated into the research problem, a qualitative research approach with inductive rather than deductive reasoning was preferred to facilitate understanding of the prevalence of bias. With the gap being a lack of properly qualified Commissioners. It is evident when a standard application of the same rules for all the people are not applied. In addition, with case management in regard to the referral of matters to weed out frivolous and vexatious disputes. The circumstances that result in biased decision making by Commissioner’s are numerous, corruption, racism, gender bias, ineptitude, lack of knowledge of the law, pressure to settle matters, a language component, an economic component, and lack of training to evaluate facts and evidence objectively. Additionally, a lack of consequences for taking biased decisions, rather than a decision that is necessarily right in law. Furthermore, a poor understanding of social justice is evident. The findings of which were that bias does exist and does have an impact on social justice. The CCMA can improve on their performance by managing their caseloads more effectively, with rejecting frivolous cases, employing commissioners with a formal legal qualification and improved training in the reduction of bias decision making. HR practitioners and labour practitioners leading cases at the CCMA can benefit by the psycho-social and legal (procedural) influences identified in the study. This study contributes to the understanding of Bias within a quasi-judicial system and explores the various contradicting laws and systems in use that expose Bias and the views from legal experts on ways to mitigate Bias. This study contributes to the literature of Bias within these systems and further research must explore the underlying causes of overt and covert Bias within the CCMA. , Thesis (DBA) -- Faculty of Business and Economic Sciences, Business School, 2023
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  • Date Issued: 2023-12

Individual decision-making and cooperation in freshwater fisheries management at the Somme River, northern France

  • Authors: Khumalo, Brian
  • Date: 2022-04-07
  • Subjects: Fishery management France Somme River , Fisheries France Somme River , Human ecology France Somme River , Traditional ecological knowledge France Somme River , Decision making , Experimental economics , Recreation France Somme River
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/294561 , vital:57233
  • Description: Are altruistic individuals more likely to cooperate when exploiting common resources? This research study asks whether or not rates of human altruistic behaviour expressed by individual recreational fishers in interpersonal contexts at the Somme River, Amiens mirror those rates of altruism expressed in collective contexts concerning local fisheries resources. In a natural resources context, altruism manifests as a willingness by fishers to incur personal cost for common-pool resource benefit. Accordingly, it is understood that altruistic behaviour reflected collectively expresses itself as cooperation. The research study takes place in Northern France with the stated objectives to: 1) observe individual fishers’ altruistic propensities in interpersonal contexts involving other fishers, 2) observe individual rates of altruistic behaviour in collective contexts involving common fisheries resources and compare with those expressed interpersonally, and 3) investigate whether or not a local (informal) management system existed in the town of Amiens to better understand if informal tenure of water space influences altruistic behaviour or not. The research design consists of two components, one quantitative and one qualitative. The former employs two economic games; a Dictators Games (DG) and a Public Good Game (PGG) in service of the first and second research objectives, and the latter employs cognitive mapping and free-listing exercises in service of the third. Here economic games stand as proxies for real-world situations involving individual (DG) and collective (PGG) decision-making whereas the exercises seek to uncover local ecological knowledge (LEK). The results found that while individual recreational fishers demonstrated lower rates of interpersonal altruism overall, in a collective setting involving local fisheries resources the rate was higher, implying a greater willingness to incur personal cost. Ecological knowledge was high among experienced fishers, yet no knowledge pertaining to parallel management and or informal rules of exclusion or resource subtraction were observed, suggesting an informal management system did not exist. The study additionally documents freshwater biodiversity, providing an index of fish species present in the river collected from the free-listing exercises, categorized into native and non-native as the latter can negatively affect trophic systems and ecosystem processes. , Thesis (MSocSci) -- Faculty of Humanities, Anthropology, 2022
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  • Date Issued: 2022-04-07

Evaluating the business improvement strategies, practices and challenges in the platinum mining industry

  • Authors: Mulaudzi, Marubini David
  • Date: 2018
  • Subjects: Business planning -- South Africa , Decision making
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: http://hdl.handle.net/10948/32938 , vital:32412
  • Description: The purpose of this study was to evaluate the strategies, practices and challenges relating to business performance and the implementation of business improvement to align production and maintenance strategies to the corporate strategy in Anglo American Platinum, a mining operation in South Africa. A set of questions were used in a qualitative research design through interview questions to collect data from corporate strategic management and the operational management involved in business improvement initiatives in the production and maintenance processes. Globally, mining companies are faced with many challenges, including safety, system integration and standardisation, caring for the environment, cost controlling and reliability of machinery and equipment. The mining industry is both labour and capital-intensive. While the South African labour force has unlimited demands on wages and salaries, most machinery runs at its maximum capacity and requires more capital for the operations to continue production, ensuring value creation for all stakeholders and hence sustainability of the operations. The situation was aggravated when market forces determining the commodity prices became volatile, causing the slump in the commodity prices. As a result, profit margins were eroded by the higher costs of production and higher wages costs. To create a sustainable, cost-effective operation and improve recovery and grades, mining companies such as Anglo American Platinum implemented a business improvement initiative. This study aims to evaluate the strategies, practices and challenges in relation to business improvement at Anglo American Platinum. Observations are that the impact of misalignment between corporate strategy, together with business improvement production and maintenance strategies, contribute minimally to the performance of production at Anglo American Platinum.
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  • Date Issued: 2018

The development of an optimised decision based methodology for the replacement timing of frontline equipment utilised within the quarrying industry

  • Authors: Basson, Kenneth Mervyn
  • Date: 2018
  • Subjects: Decision making , Industrial equipment Industrial equipment -- Maintenance and repair
  • Language: English
  • Type: Thesis , Doctoral , DBA
  • Identifier: http://hdl.handle.net/10948/23647 , vital:30592
  • Description: At present, frontline equipment employed at B&E International, and operating within the quarrying sector is typically replaced as soon as the operating expenses are deemed to be excessive. From a capital budgeting perspective, the trigger for signalling the replacement of equipment occurs when prescribed operating cost performance metrics are violated. In some instances, a further consideration for motivating the replacement of equipment is when the perception arises that the nonavailability of the equipment employed, results in financial losses being incurred by a company. It can therefore be argued that the current equipment replacement timing methodological approach adopted at B&E International is suboptimal in nature. The situation is further aggravated by the fact that in many instances, escalation of commitment manifests itself whereby unnecessary capital is repeatedly invested in order to extend the life of an asset resulting in a situation occurring whereby the required level of investment return is not achieved. In the event of these situations arising, the decision to replace an asset is prolonged as a result of the suboptimal investment decisions being made. The primary focus of this study is to provide a methodological equipment replacement framework that is based upon sound capital budgeting fundamentals. A comprehensive literature review of capital budgeting approaches that specifically focus on the optimal replacement timing of frontline quarrying equipment, did not yield any relevant studies that have been undertaken in this regard. This study did however investigate contemporary equipment replacement approaches based upon a capital budgeting paradigm and highlighted their respective limitations. Convincing evidence obtained, indicated that the most widely accepted method of identifying the optimal replacement timing of equipment occurs when the economic life of the asset is attained. This in itself would therefore infer that a cost minimisation approach is the most pervasive methodological approach adopted in order to identify the optimal replacement timing of equipment. When considering capital investment based decisions, it was found that the discounted cash flow based methodologies are the most widely used and accepted approach applied in the mining industry. Notwithstanding this, one major caveat manifests itself in that when considering the optimal replacement timing of front line equipment within the quarrying industry, the inclusion of uncertainty, flexibility and the associated financial risks was not evident. In order to model these effects, a probabilistic Net Present Value (NPV) approach was adopted and the required Discounted Cash Flow (DCF) models were constructed. Given the uncertainty of the expected cumulative R&M profiles for the asset classes constituting this study, an extensive statistical analysis was carried out in order to establish the required predictive Repair and Maintenance (R&M) models required for the DCF analysis by means of regression analysis. Further regression analyses were conducted in order to model the overall availability and utilisation metrics for the respective asset classes included in this study. The consequence of incurring downtime was investigated and the resultant DCF analysis yielded a significant impact on the Free Cash Flow (FCF) generated by the respective assets. The magnitude of the incurred consequential financial losses incurred as a result of the respective downtime was found to be significant when considering frontline equipment. In order to model the effect of, and the extent to which, the respective independent variables influence the static NPV outcome, a sensitivity analysis was performed. From this, the influence of the independent variables constituting the NPV model employed in this study, were observed. A Real Options Analysis (ROA) approach was initially employed in order to model the effects of FCF uncertainty and the results of carrying out this analysis indicated a minimal influence on the static NPV model referred to earlier. It was therefore concluded that from an equipment replacement timing perspective, the ROA approach did not provide a robust and accurate representation of the probabilistic NPV outcomes anticipated. In order to address these perceived shortcomings, an Monte Carlo Simulation (MCS) model was constructed and the requisite probability distribution functions representing the most influential independent variables determined from the sensitivity analysis were identified and subsequently analysed. The results of the MCS analysis yielded the expected NPV outcomes that were found to be far more conservative compared to the static NPV outcomes referred to previously. Furthermore, the concluding findings of this study indicate that in order to estimate the optimal time to dispose of an asset, a static NPV analysis must first be modelled and thereafter a probabilistic NPV analysis. The respective uncertainty aspects over the lifespan of the assets should be identified to be incorporated into the MCS model. This methodological approach therefore opposes the use of a strictly deterministic based approach and rather predicates the use of a probabilistic NPV based framework. This study further concluded that traditional DCF approaches fail to consider management flexibility in terms of adapting to uncertainty and to also reduce the possibility of “escalation of commitment” occurring as a result of sub-optimal equipment replacement timing decisions by management. The use and acceptance of the traditional DCF approaches are acknowledged, but in order to develop an equipment replacement methodological approach that considers uncertainty and risk on the one hand and also allows for the incorporation of real data over the assets lifetime on the other, the use of an MCS probabilistic NPV based model was found to be the optimal approach to be adopted. The result of updating the static NPV model with updated data as soon as it is obtained enables one to generate accurate probabilistic distribution functions required for the subsequent MCS analysis. By adopting this approach the study has concluded that one can obtain realistic and accurate NPV forecasts from the anticipated FCF estimates. The principal conclusion obtained from this study is that the optimal time in which to replace front line assets employed at B&E International is when the probabilistic net earnings profile, viz., NPV of the equipment is maximized.
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  • Date Issued: 2018

Perceived decision making factors in the use of traditional and alternative medicine for people living with HIV and AIDS

  • Authors: Muromo, Tinashe
  • Date: 2016
  • Subjects: Decision making , HIV-positive persons -- Attitudes , Social influence
  • Language: English
  • Type: Thesis , Doctoral , DPhil
  • Identifier: http://hdl.handle.net/10948/5687 , vital:20963
  • Description: AIDS is one of the most destructive diseases humankind has ever faced and also brings with it profound social, economic and public health consequences, making it one of the most serious health and development challenges in the world today. Zimbabwe, situated in southeastern Africa, is not spared from the pandemic. It continues to be one of the Sub-SaharanAfrican countries mostly heavily impacted by the AIDS epidemic, with almost 1.2 million people infected and over 1.1 million orphans. It ranks, therefore, as fifth highest in the world in the impact HIV and AIDS has had on the country. The most effective response has been to introduce programmes to reduce the number of new infections. Recent research has demonstrated treatment as a preventative measure to be very effective. This approach involves targeting those who are infected so that they are not able to transmit the disease. The decision that has to be made by an infected person, however, is whether to look for traditional treatment, conventional treatment or a combination of the two. Herbal medicine use is becoming very common in many countries, especially in the developing world, where public health safety has become a concern. It has become common to use herbal medicine concomitantly with allopathic or conventional medicine. The present study focused on investigating perceptions leading to the choice of treatment with the traditional alternative medicines (TAM) as (a)/n alternative or compliment to the conventional or allopathic option. This is a qualitative study that explores and describes participant’s perceptions, beliefs, attitudes and feelings around the use of traditional medicine, within the context of the Integrative Behaviour Model (IBM). Data was collected from 20 people living with HIV and AIDS from urban and rural settings of different ethnicities (Shona and Shangani). The data analysis was informed by The Interpretive Phenomenological Analysis with the aid of NVivo (V.10), a computer-assisted Qualitative Data Analysis Software. As predicted by the IBM, both perceived individual and environmental factors were found to be key in influencing decision-making on the use of TAM by people living with HIV and AIDS. Although there were a number of incidents in which either individual or environmental factors were perceived as independently influencing the TAM-use decision-making process, there was a lot of mutual influence between the environment and the individual. Such mutual causation was abstracted as reciprocal determinism. The IMB model assumed a unidirectional causation in which the environment could affect the individual factors. While the present study identified and demonstrated these environmental effects on the individual, it also identified and presented a reverse causation in which the individual would also affect the environment with respect to motivation for TAM use. Individual factors were psychological properties that drove the individual to use TAM. Attitude, social influence and personal agency emerged as the three dimensions of individual factors. Attitudes helped in identification of orientations that located objects of thought on dimensions of judgment about the use of TAM. Social influence explained social pressure experienced and expected regarding the use of TAM. The study demonstrated the importance of both the descriptive and injunctive norm with participants indicating that they perceived important others to be using traditional medicine and that they felt perceived expectations from others to do the same and hence the motivation to comply. Personal agency pointed to the participants’ capacities to originate and direct actions for the purposes of TAM use. All these constructs were found to be very important as perceived determinants of the behavioral intentions of people living with HIV and AIDS to use traditional medicines. In experiential attitude, generally the respondents showed more perceived positive evaluations of pleasurable experiences in their use of traditional medicines. However, there were other outcome evaluations that seemed to be ambivalent and which appeared to cause a lot of tension. The comprehension of experiential attitude was found therefore found to be trichotomous rather than dichotomous as per the IBM. The effects of the instrumental attitude were revealed in the ratings of the extent to which the use of traditional medicine was perceived as useful or rewarding, with the study revealing high ratings of usefulness. It becomes clear, therefore, that for people living with HIV and AIDS social influence, perceived attitudes and personal agency are important decision-making factors in their use of traditional and alternative medicine. Efforts towards education, integration and behaviour change programmes should design messages targeting these behavioral determinants. Understanding of these perceived determinants is crucial to influencing policy as well as the adoption of health practices through education, marketing and other modes of health promotion.
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  • Date Issued: 2016

The impact of internal behavioural decision-making biases on South African collective investment scheme performance

  • Authors: Muller, Stacey Leigh
  • Date: 2015
  • Subjects: Decision making , Investment analysis , Efficient market theory , Consumer behavior , Behavioral assessment , Mutual funds
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:1209 , http://hdl.handle.net/10962/d1020308
  • Description: Market efficiency, based on people acting rationally, has been the dominating finance theory for most of the 20th and 21st Century’s. This classical finance theory is based on assumptions that people are rational, they absorb all available information and maximise utility. This view is outdated; it has been shown that people are in fact irrational and that this could be the cause of anomalies in the market. Behavioural finance takes into account people, and their natural biases. Behavioural finance has integrated classical financial theories and psychological theories to illustrate the way in which irrational people can impact market efficiency. This research looks at the way collective investment scheme manager decision-making can impact market efficiency. Specifically the behavioural biases: overconfidence, over optimism, loss aversion and frame dependence and whether or not collective investment scheme performance is affected by these. This research was carried out using a questionnaire distributed directly to CIS managers and risk-adjusted returns were used in order to allow for comparative results. The results from the questionnaire show evidence that actively managing South African CIS managers do indeed suffer from overconfidence and loss aversion and they do not appear to suffer from frame dependence or over optimism in this research context. There was also evidence showing that managers who suffer from these biases also demonstrated lower investment returns. “The investor’s chief problem, and even his worst enemy, is likely to be himself.” - Benjamin Graham
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  • Date Issued: 2015

An analysis of regulatory mechanisms during sustained task execution in cognitive, motor and sensory tasks

  • Authors: Tau, Sethunya Harriet Hlobisa
  • Date: 2013 , 2013-10-11
  • Subjects: Work -- Physiological aspects , Work -- Psychological aspects , Fatigue , Attention , Mental fatigue , Human information processing , Decision making , Labor productivity , Employees -- Workload , Performance
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5140 , http://hdl.handle.net/10962/d1006806 , Work -- Physiological aspects , Work -- Psychological aspects , Fatigue , Attention , Mental fatigue , Human information processing , Decision making , Labor productivity , Employees -- Workload , Performance
  • Description: Fatigue is a state that, although researched for many years, is still not completely understood. Alongside this lack of a general understanding of fatigue is a lack of knowledge on the processes involved in the regulation of fatigue. The existing theories relating to regulation are focussed on mental effort regulation, suggesting that performance outcomes are co-ordinated by effort regulation that functions by making alterations to physiological processes and strategic adjustments at a cognitive level in response to cognitive demands and goals. Since fatigue is a multi-dimensional construct with psychological, physiological, and behavioural effects that respond to endogenous and exogenous variables, it follows then that fatigue assessment techniques ought to include multi-dimensional measures to acquire a holistic depiction of the fatigue symptom. This study aimed to assess whether or not a mechanism that regulated fatigue during sustained task execution could be identified and whether this mechanism resulted in regulation patterns that were distinct to a specific task. An additional aim of the study was on assessing whether the manner in which performance, psychophysical and subjective variables were modified over time followed a similar regulation pattern. The research design was aimed at inducing task-related fatigue twice on two different occasions in the same participants and evaluating the resultant changes in fatigue manifestation. This was done to assess the ability of participants to cope with fatigue as a result of previous experience. The research protocol included three tasks executed for an hour aimed at targeting and taxing the sensory, cognitive, motor resources, each task performed twice. 60 participants were recruited to participate in the current study, with 20 participants – 10 males and 10 females – randomly assigned to each of the three tasks. The cognitive resource task consisted of a memory recall task relying on working memory intended to evaluate the extent of reductions in memory and attention. The sensory resource task consisted of a reading task measuring visual scanning and perception designed to evaluate the extent of reduced vigilance. The motor resource task consisted of a modified Fitts’ stimulus response task targeted at monitoring the extent of movement timing disruption. Performance measures comprised of: response delay and the number of correctly identified digits during the cognitive resource task, the amount of correctly identified errors and reading speed during the sensory resource task, response time during the motor resource task, and responses to simple auditory reaction time tests (RTT) initiated at intervals during the task and then again at the end of each task. Physiological measures included ear temperature, eye blink frequency and duration, heart rate (HR), and heart rate variability (HRV). Subjective measures included the use of the Ratings of Perceived Exertion Category Ratio 10 scale (RPE CR 10) to measure cognitive exertion and the NASA-Task Load Index (NASA-TLX) to index mental workload. Eye blink frequency and duration, HR and HRV were sensitive to the type of task executed, showing differing response patterns both over the different tasks and over the two test sessions. The subjective measures indicated increasing RPE ratings over time in all tasks while the NASA-TLX indicated that each task elicited different workloads. Differing task performance responses were measured between the 1st test session and the 2nd test session during all tasks; while performance was found to improve during the 2nd test session for the motor and sensory tasks, it declined during the cognitive task. The findings of this research indicate that there was a regulatory mechanism for fatigue that altered the manner in which performance, psychophysical and subjective variables were modified over time, initiating a unique fatigue regulation pattern for each variable and each task. This regulation mechanism is understood to be a proactive and protective mechanism that functions through reducing a person’s ability to be vigilant, attentive, to exercise discernment, and to direct their level of responsiveness, essentially impacting how the body adapts to and copes with fatigue. The noted overall findings have industry implications; industries should consider accounting for the effects of this regulatory mechanism in their fatigue management interventions, specifically when designing job rotation and work/rest schedules because each cognitive task, having elicited a unique fatigue regulation pattern, ought to also have a different management program. , Microsoft� Office Word 2007 , Adobe Acrobat 9.54 Paper Capture Plug-in
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  • Date Issued: 2013

The factors affecting self-regulation through the analysis of physiological, psychological and behavioural measures during task-switching

  • Authors: Chaplin, Caley
  • Date: 2013 , 2013-07-16
  • Subjects: Human multitasking -- Physiological aspects , Human multitasking -- Psychological aspects , Fatigue , Boredom , Attention , Mental fatigue , Human information processing , Decision making , Labor productivity , Industrial hygiene , Employees -- Workload
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5135 , http://hdl.handle.net/10962/d1006027 , Human multitasking -- Physiological aspects , Human multitasking -- Psychological aspects , Fatigue , Boredom , Attention , Mental fatigue , Human information processing , Decision making , Labor productivity , Industrial hygiene , Employees -- Workload
  • Description: Individuals are required to manage multiple tasks which require strategic allocation of time and effort to ensure goals are reached efficiently. By providing the worker with autonomy over their work, performance and worker well-being have improved. This increased control allows individuals to organize work according to the needs of the body, which prevents fatigue leading to improved productivity. When given the option, humans tend to switch between tasks frequently. This behaviour can be used to determine the change in self-regulation strategies. An understanding of human task-switching behaviour is important for the design of job rotation systems. However, there is a lack of evidence explaining the factors motivating the need to switch between tasks. This study aims to use physiological, subjective and behavioural measures to explain the factors influencing selfregulation through the act of task-switching. Three primary hypotheses were developed to explain the factors underlying taskswitching behaviour. It was hypothesized that the degree of boredom experienced, the effort required to perform the task and the resource usage induced by the task are factors responsible in deciding task switching behaviour. Participants (17 males and 17 females) switched freely between five different information-processing tasks for the 45 minutes. Participants were allowed to switch back and forth between tasks and did not have to conduct all five tasks. The following measures were recorded during the experiment: subjective measures of boredom, mental effort, task frustration and perceived performance of the tasks; energy consumption and physiological measures of effort (HR, HRV and body temperature) and behavioural measures, including duration and frequency of task. Perceived boredom was found to differ among the tasks and before and after the experiment. The average boredom rating at each task transition for all tasks exceeded a score of 2.5 out of a possible 4. There were no significant changes in physiological measures between the beginning and end of the task trials. However, changes in physiological measures showed a decrease in effort investment following task transition. Heart rate variability was lower for externally-paced tasks than for self-paced tasks, despite the differences in cognitive demands. The most frequent task-switch combination occurred between tasks of high and low cognitive demand. The least frequent task-switching combination occurred between tasks of similar characteristics, which produced no differences in physiological responses. Task-switching behaviour was influenced by the degree of boredom, and therefore more time was spent on less monotonous tasks. The level of physiological effort required for the task affected task-switching behaviour. Task switches were made before any changes in effort took place in an attempt to maintain task efficiency. It appears plausible that a task switch was made to reduce effort investment and activation levels. The type of information processing resources used by different tasks affected the task-switching combinations. Individuals tended to switch between tasks of differing resources so that those in limited supply were able to replenish. Therefore the findings from this study can potentially be used to improve the design of job rotation systems. Such improvements may enhance productivity and worker well-being by inhibiting the onset of down regulation and fatigue processes. This study showed that autonomy is necessary for individuals to regulate behaviour to suit human needs. , Microsoft� Office Word 2007 , Adobe Acrobat 9.54 Paper Capture Plug-in
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  • Date Issued: 2013

Identity-related decision-making among multicultural adolescents

  • Authors: Siwundla, Lundi
  • Date: 2011
  • Subjects: Identity (Psychology) , Multiculturalism , Decision making , Teenagers -- Social networks , Social intelligence , Adolescence
  • Language: English
  • Type: Thesis , Masters , M Soc Sc (C Psy)
  • Identifier: vital:11855 , http://hdl.handle.net/10353/319 , Identity (Psychology) , Multiculturalism , Decision making , Teenagers -- Social networks , Social intelligence , Adolescence
  • Description: This present study investigated South African Afrikaans-, English- and Xhosa-speaking male and female urban secondary school adolescents‟ (N = 1301) perception of the relative importance of identity-related domains by investigating the choices that they carried out in relation to meaningful identity-related areas of their lives. Consequently a structured questionnaire consisting of 14 domain particular areas was used. In Eriksonian terms, one could say that the South African society is in a psychosocial crisis. Almost all the domain-specific items were regarded as relevant “Very important” or “Fairly important” by a notable or significant majority of participants. All fourteen of the domains were regarded as “Very important” by at least 35 percent of the participants from two cultural groups, namely African and Coloured sub cultural groups; while twelve of the domains were regarded as “Very important” by at least 50 percent of the African subgroup and thirteen domains were regarded as “Very important” by 40 percent of the Coloured subgroup. “Leisure and recreational activities”, “Friendships with members of the same sex peer group”, “My political views and convictions” and “Friendships with members of the opposite sex peer group” were however, still regarded as “Fairly important” by 56 percent, 53 percent, 58 percent and 52 percent of the total research group respectively. It should also be noted that generally females in the sample were more inclined to evaluate domains that had a bearing on interpersonal relationships as significantly more important than the males namely: Friendship with members of the same-sex peer group, What kind of person I want a permanent relationship with, What kind of person I want to marry, and How I should act as husband or wife. The males tended to evaluate the domains, Sexual matters and Friendship with members of the opposite sex more significantly important than the females did.
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  • Date Issued: 2011

Investigating the utilisation of enterprise risk management at East London industrial development zone

  • Authors: Tutani, Luvo
  • Date: 2011
  • Subjects: Risk management , Decision making
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:8773 , http://hdl.handle.net/10948/d1012651 , Risk management , Decision making
  • Description: The aim of this study was to suggest ways to use enterprise risk management (ERM) effectively towards achieving strategic objectives at East London Industrial Development Zone. The results of the research will contribute to the set of tools which business can utilise in effective business planning and achieve sustainability of enterprises. Enterprise risk management provides stakeholders with reasonable assurance that management has taken due care in drawing up strategies aligned with their appetite for risk. The objective was to investigate the utilisation of Enterprise Risk Management at East London Industrial Development Zone. The literature review revealed shortcomings of the traditional risk management strategy. Examples of the shortcomings are its preoccupation with hazard risks and its disconnection with other functions in an organisation. ERM has emerged as the organisation wide approach to the handling of risk. Effectively integrated with strategy-setting and performance management, ERM strengthens opportunity-seeking behaviour by helping directors and managers develop the confidence that they truly understand the risks inherent in the organization’s strategy and have the capabilities in place to manage and monitor those risks. The assessment of risks after the strategy formulation process results in defective risk management. The result could be strategic objectives that are unrealistic and risk management that is just an appendage to performance management. The empirical study consisted of face-to-face interviews using semi-structured questionnaires. The respondents were Business Unit Managers at East London Industrial Development Zone who advised on current practice of ERM in the organization. The main findings of the empirical investigation revealed that ERM started with organisational survival in mind but ended up being a compliance activity. Also, ERM is under-resourced as there are no dedicated ERM financial and human resources. The organization’s unstructured and informal approach to ERM could place the strategic objectives at risk. Recommendations conclude the investigation and address the shortcomings and improvements that can be made to the utilisation of ERM within the organization. The recommendations are ensuring strong commitment towards ERM and widening the participation of all employees in ERM; developing an ERM road map; allocation of resources to ERM initiative; development of a business case for ERM; training of all managers and all employees on ERM; and focusing on low-hanging return, which may result in quicker realisation of the value added by ERM to the organization.
  • Full Text:
  • Date Issued: 2011

Managerial decision making processes and affective outcomes as a function of individual factors and self-efficacy beliefs

  • Authors: Myburgh, Wim
  • Date: 2010
  • Subjects: Decision making
  • Language: English
  • Type: Thesis , Doctoral , DPhil
  • Identifier: vital:9893 , http://hdl.handle.net/10948/1141 , Decision making
  • Description: Making decisions in the business environment is arguably the most challenging aspect of managers' yet also the easiest to fail in. Unlike individual decisions managers as agents for their organizations make decisions amidst high levels of ambiguity, incomplete information and mostly under time pressure. These are the very conditions that make managers vulnerable to the volition-undermining potential of decision-generated affect precisely when they are feeling over-extended to deal with such demands. Effective managerial decision making (MDM) involves more than applying a set of individual abilities. Managers face numerous obstacles, failures, and setbacks that often carry perturbing self-evaluative implications as well as social consequences that undermine their self-evaluations in ways that impair good use of their decision making skills (Bandura, 1997). Given the absence of a coherent theoretical framework in the literature the conceptual model of relations put forward attempts to organize and simplify how managers make decisions as agents of their organizations. Most conceptualizations apply oversimplified models that focus attention on one or a few variables, neglect the joint constellations of individual variable factors and the influence of individual self-generated influences as a contributing factor in MDM. As an ex post facto explanatory-predictive study the present research offers evidence of these links among the theoretically relevant constructs in order to formulate an account of their relations in a parsimonious framework that could guide future insights to explain and predict the intentions and direction of managerial decision behaviour. Conceptual research has outpaced empirical research in decision making of managers in organizations. A number of mini-theories exists that focus on a few variables using linear, antecedent-consequence relations with manipulations in laboratory environments that deal with decisions in contexts that are very different to those faced by managers. There is limited research on managers as research participants and empirical findings based on non-managerial samples and students may not generalize to managers in real life decision making. The present research used a non-probability, purposive sample (N = 196) of experienced managers in the Western Cape region of South Africa, all employed in private and public organizations (mean age 38.9 years, SD of 7.49, ethnic black managers constituted 15.8 percent of the sample). As part of the study it was necessary to construct and validate custom indicator measures in an independent pilot study from the same population. The pilot study determined the factor structures of the dimensionality and internal consistency of the custom-designed measures by way of both convergent, as well as, discriminative validity. The exploratory factor (EFA) and internal reliability analyses succeeded to provide both a comprehensive and empirical grasp on the constructs as was defined. Further, analyses of both standardized and custom-designed also revealed no significant difference between black and other managers across the pilot samples which provided confidence of the substantive relations of interest (i.e., the associations among the variables). Structural equation modeling (SEM) was chosen as the data analysis strategy of choice and a confirmatory factor analysis (CFA) demonstrated that the operational measures by and large succeeded in providing both a comprehensive and empirical grasp on the constructs as defined. The inter-construct relations were also consistent with expectations. Evidence for convergent validity however proved that the indicator measures for the allocation of attentional resources were less than adequate in order to provide an uncontaminated measure as a latent variable. The structural model was subjected to further scrutiny by way of a spectrum of goodness-of-fit statistics. The analyses revealed that the model was not adequate and the null hypothesis that the model fitted the population data was subsequently, rejected. It was also sensible to assess the degree of lack of fit of the model with reference to RMSEA which revealed a value of .08, that suggested a reasonable model fit. The poor structural model fit could however be attributed to the failure of the measured indicators used to provide an acceptable grasp of the allocation of attentional resources as a latent variable. The inherent structural flaws in the model could however not be unequivocally be ruled out as an additional possibility of poor fit. One conclusion is the possibility of an expanded model that requires additional indicator measures and additional paths. Notwithstanding these limitations, the present research provided support for social cognitive theory that underlies the model. In accordance with the literature and empirical findings the present research demonstrated mangers' decision making is much more than reason-based behaviour. The present research demonstrates the interdependencies and cumulative effects among individual factors, self-efficacy beliefs and temporal volitional processes, as psychological iv mechanisms through which social-structural factors are linked to the quality of MDM processes. The present research also presents an argument for the independent contributions of self-efficacy beliefs as causal influences on "hot temporal processes" that promote accuracy in decision making. Although present research demonstrates that the estimates were greater for cognitive ability than for both self-efficacy beliefs and social self-confidence it does not suggest that personality traits and self-efficacy beliefs have no utility. The present research demonstrates that cognitive ability combines with personality traits, self-efficacy beliefs and temporal processes (decision-generated affect and the allocation of attentional resources) in a complex manner through multiple pathways.
  • Full Text:
  • Date Issued: 2010

Decision making improvement by effectively utilising activity-based costing and activity-based management tools

  • Authors: Palmer, Vivian Julian
  • Date: 2009
  • Subjects: Decision making , Thought and thinking
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:8677 , http://hdl.handle.net/10948/1152 , Decision making , Thought and thinking
  • Description: The aim of this study was to suggest ways to effectively utilise Activity-Based Costing and Activity-Based Managment within Eskom Transmission Southern Grid to improve decision making towards improved business and financial performance. The ultimate purpose was to assist managers and staff to implement ABC and ABM effectively for improved business and financial performance. The focus was on the following objective: To suggest ways to effectively utilise ABC & ABM within Eskom Transmission Southern Grid as to improve decision making and business financial performance. Given the selection of management tools available, instruments such as ABC and ABM are usually not implemented alone, but may be supported by one or more approaches. For this reason ABC and ABM are contrasted with several other popular instruments mentioned in the literature. The instruments are: • The value chain; • Continuous improvement; • The theory of constraints; and • Total quality management. Insight will be given to provide managers with more accurate information regarding maintenance for the Grid and tools in identifying critical bottlenecks. By applying the TOC, TQM and continuous improvement strategies, managers will be able to make improved decisions, leading to improved financial performance in the Eskom Transmission Southern Grid. iii The literature study revealed that ABC and ABM prove to be the cornerstone for informed decision making. Since organisations are highly dependent on quality information to make these informed decisions, ABC and ABM reorientate the organisation towards understanding and managing work processes thus impacting financial performance positively. ABC and ABM trace the cost of activities such as engineering and procurement to how maintenance benefits from these activities. The empirical study consisted of a structured questionnaire distributed to a sample population of engineers and managers in Eskom Transmission Southern Grid in Port Elizabeth. It was aimed at gathering information about the use of ABC and ABM within the Grid. Semi-structured interviews were also conducted with financial staff in the Grid and a focus group interview with engineering staff was done. The main findings of the empirical investigation revealed that management and staff lack insight into the use of ABC and ABM and how it can be integrated with existing improvement systems within the organisation. This study is concluded with a number of recommendations. These recommendations address the shortcomings and improvements that can be made to improve the utilisation of ABC and ABM within the organisation. The recommendations address the following: • Ensuring full commitment towards organisational goals and broadening the endorsement of ABC within the organisation; • Highlighting the importance of financial performance throughout the Grid; • Training of Managers, finance staff and engineers is required for proper execution of the ABC system; • Implementers need skills and know-how of the ABC and ABM system ensuring full utilisation; • The main cost drivers are identified, prioritised and efforts channelled into these activities; • Tools such as the Theory Of Constraints and Total Quality Management from the proposed model would assist the Grid in identifying the bottlenecks of a system correctly, thus know explicitly the amount of slack capacity of each activity available during a specific time period.
  • Full Text:
  • Date Issued: 2009

A study of fuzzy sets and systems with applications to group theory and decision making

  • Authors: Gideon, Frednard
  • Date: 2006
  • Subjects: Fuzzy sets , Fuzzy systems , Abelian groups , Decision making
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5417 , http://hdl.handle.net/10962/d1005231 , Fuzzy sets , Fuzzy systems , Abelian groups , Decision making
  • Description: In this study we apply the knowledge of fuzzy sets to group structures and also to decision-making implications. We study fuzzy subgroups of finite abelian groups. We set G = Z[subscript p[superscript n]] + Z[subscript q[superscript m]]. The classification of fuzzy subgroups of G using equivalence classes is introduced. First, we present equivalence relations on fuzzy subsets of X, and then extend it to the study of equivalence relations of fuzzy subgroups of a group G. This is then followed by the notion of flags and keychains projected as tools for enumerating fuzzy subgroups of G. In addition to this, we use linear ordering of the lattice of subgroups to characterize the maximal chains of G. Then we narrow the gap between group theory and decision-making using relations. Finally, a theory of the decision-making process in a fuzzy environment leads to a fuzzy version of capital budgeting. We define the goal, constraints and decision and show how they conflict with each other using membership function implications. We establish sets of intervals for projecting decision boundaries in general. We use the knowledge of triangular fuzzy numbers which are restricted field of fuzzy logic to evaluate investment projections.
  • Full Text:
  • Date Issued: 2006

An examination of employee participation as provided for in the Labour Relations Act 66 of 1995

  • Authors: Khoza, Francisco Jabulani
  • Date: 1999
  • Subjects: Decision making , Management -- Employee participation , Labor laws and legislation -- South Africa , South Africa. Labour Relations Act, 1995
  • Language: English
  • Type: Thesis , Masters , LLM
  • Identifier: vital:3676 , http://hdl.handle.net/10962/d1003191 , Decision making , Management -- Employee participation , Labor laws and legislation -- South Africa , South Africa. Labour Relations Act, 1995
  • Description: The thesis covers the field of labour law known as employee participation in decision-making. It deals with the examination of the extent to which the Labour Relations Act 66 of 1995 (the Act) promotes employee participation in decision-making. Firstly, the analysis shows that employee participation in decision-making is an aspect of democracy, which is translated into industrial democracy in industrial relations. In South Africa the philosophical foundation of employee participation is supported by the Constitution of the Republic of South Africa Act 108 of 1996 which embodies democratic values permeating all areas of the law including labour law. Secondly, the study elucidates the jurisprudential background of employee participation in South Africa. There is evidence of the development of some principles of participation like consultation; information disclosure; and the existence of participatory forums like works councils under the LRA 28 of 1956. Thirdly, in evaluating the extent to which the LRA 66 of 1995 promotes employee participation, the following aspects are covered: the relevance and contribution of information disclosure; the effect of consultation prior to dismissal for operational requirements; the role of collective bargaining; and the contribution of workplace forums. The conclusion is reached that all the foregoing aspects of the LRA 66 of 1995 will contribute to the promotion of employee participation in decision-making. The Labour Court and the Commission for Conciliation Mediation and Arbitration can also ensure that in interpreting the Act employee participation is promoted where appropriate. Finally, employers and employees will have to accept this necessary partnership for the entrenchment of employee participation in decision-making.
  • Full Text:
  • Date Issued: 1999
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