4. Electronic Theses and Dissertations (ETDs) - Faculties submissions
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Item The impact of Covid-19 on international migration and remittances in developing countries(University of the Witwatersrand, Johannesburg, 2023-03-20) Zihindula, Awa; Okon, keminiabasi EyitaInternational migration from developing countries and remittances to those same countries have risen steadily over time due to various factors. Remittance is a source of income for most developing countries. Both sending and receiving countries benefit from migration. However, shocks such as natural crises, pandemics and epidemics (COVID-19 and Ebola) have devastated the economy worldwide, with a high unemployment rate and lower income. This research report aimed to study the impact of COVID-19 pandemic on migration and remittances in developing countries to establish the relationship between inflow remittances and migration outflow controlling for other factors (such as unemployment rate, internet access, economic growth and GDP growth). World Bank data and UNDESA data were used in the study. However, the developing countries were dichotomized as African and non_African countries for an in-depth analysis. The study employed multiple regression model to identify the associations between variables. Results of the study found that in African countries before and during COVID-19, there was no significant relationship between migration outflow and inflow of remittances. Furthermore, the control variables did not have an effect on the dependent variable. For non-African countries, the result shows that COVID-19 did significantly affect the relationship between inflow remittances and migration outflow; when migration outflow increases, there is a decrease in remittances inflow.Item Cost-effective and novel seismic methods for mineral and coal exploration: Examples from Witwatersrand goldfields and Bushveld Complex(University of the Witwatersrand, Johannesburg, 2023) Sihoyiya, Mpofana; Manz, Musa S. D.The reflection seismic method has its origin from oil and gas exploration in the land and offshore sedimentary soft rock environment. Since the inception of the reflection seismic technology in hardrock environment, more advanced processing methods such as migration algorithms have been established to revamp the quality of hardrock seismic data for deep mineral targeting. This study shows the value of recovering and reprocessing legacy reflection seismic data using advanced processing techniques that were not available at the time of acquisition. This is achieved through different novel processing workflows that incorporate iterative static corrections, Kirchhoff pre-stack depth migration (KPreSDM), Kirchhoff pre-stack time migration (KPreSTM), and the newly developed Fresnel-volume (FV) and coherency migration (CM) techniques. This research also shows the value of novel processing of the seismic data acquired in-mine challenging environments. The legacy data from the Kaapvaal Craton in South Africa have been processed to improve the delineation of the deep-seated mineral deposits such as the gold-bearing horizons (termed reefs) in the Witwatersrand Basin and Platinum Group Element (PGE) horizons in the Bushveld Complex. Furthermore, the shallow coal seams and associated geological structures of the Karoo Supergroup in the Evander Basin, an arcuate basin characterized by the Witwatersrand Basin towards the south and the Bushveld Complex towards the north, have been delineated for future mine planning and designs. To better image and understand the geometry of the gold-bearing reefs and crosscutting geological structures in the South Rand goldfield, an 18 km long legacy two-dimensional (2D) reflection seismic line was reprocessed using today’s standard processing workflow which employed iterative static corrections. Improved structural imaging of the steeply dipping faults (mostly normal and reverse), as well as dolerite intrusions, was mostly achieved by using KPreSTM and KPreSDM, with KPreSDM providing better structural imaging than other techniques. Moreover, reprocessing of this profile using an improved velocity model and numerical simulations assisted in delineating near surface stratigraphic units and deep-seated (> 1 km depth) geological structures that are associated with the gold-bearing reef but missed by the legacy post-stack time migrated section. In the Bushveld Complex, the PGE deposits (known as platinum reefs) are delineated using a newly developed depth migration technique called coherency migration. Imaging through CM workflow shows evidence of the complex structural architecture that controls the platinum deposits in the study area. The 50 km long legacy 2D profile traverses towards the center of the complex and provides a better understanding of the tectonic evolution in the region. Additionally, magnetic data were utilised to constrain seismic interpretation and delineate the highly magnetic major geological structures such as the Chaneng structure and strongly magnetized rocks of the Rustenburg Layered Suite. The Chaneng structure, in particular, was poorly defined by the seismic data due to its steeply dipping nature. In 2020, in-mine seismic experiments were conducted to delineate the PGE-bearing horizons such as the Upper Group-2 (UG2) and Merensky Reef. Three reflection seismic profiles from these experiments were cautiously processed to attenuate the infrastructure-generated noise. The experiments were successful and delineated the Merensky Reef and UG2 mineralisations at depths between 55 m and 124 m beneath the developmental tunnel (~550 m below the surface). Six legacy 2D reflection seismic profiles acquired for gold exploration in 1986 in the Evander Basin are processed for imaging both the Witwatersrand Basin and the Bushveld Complex, as well as the coal seams of the Highveld and Witbank coalfields. The profiles were acquired perpendicular to each other providing pseudo-three-dimensional (3D) imaging of the subsurface and better delineation of the geological structures. The degree of faulting and folding that affect the mineralisation observed on the processed profiles in all sites would not have been achieved if advanced processing workflows were not implemented. Processing of the legacy data provides a more cost‐effective way to explore the mineral deposits than reacquiring new data, which could be costly and limited by surface conditions. The processing approaches used in this thesis can be used in other brownfield mining regions where the legacy data exist, and they can also be used to revamp the quality of the data acquired in noisy mining environmentItem Children Moving Across Borders: Equitable Access to Education for Undocumented Migrants in South Africa(University of the Witwatersrand, Johannesburg, 2023-09) Blessed-Sayah, Sarah Enaan-Maseph; Griffiths, DominicSouth Africa is experiencing an increase in intra-regional migration, and the management of migration in the country is increasingly becoming highly securitised. Individuals who move intra-regionally across borders include children –accompanied by parents or caretakers, unaccompanied, and those seeking refuge because of untenable and oppressive circumstances in their home country. Also, individuals who move to South Africa without legal documentation often give birth to children within the State, who are then undocumented. Without documentation, these children cannot access education, which means that achieving their educational right becomes impossible. This happens partly because of legal contradictions that exist in immigration and education policy frameworks. For instance, the Bill of Rights, as contained in Section 29(1)(a) of the Constitution of South Africa (The Constitution of the Republic of South Africa No. 108, 1996), states that everyone has the right to basic education, and further states in subsection 2 that the State (being South Africa) is obligated to respect this right. Additionally, the South African Schools Act 84 of 1996 (Republic of South Africa, 1996) states that public schools are obliged to admit children without any form of discrimination on any grounds. However, the Immigration Act No 13 of 2002 states that no ‘illegal foreigner’ should be allowed on the premises of any learning institution (Republic of South Africa The Presidency, 2002). Thus, the question remains whether undocumented migrant children are included in the ‘all’ or ‘every’ because of existing legal contradictions between the Constitution and the Immigration Policy. Furthermore, the need to consider how the educational right of undocumented migrant children is upheld comes from the evident nationalist view on migration in South Africa, which is projected through government, and in local communities. Although some studies have evaluated the extent to which this right is protected or ensured, and others have considered the barriers to exercising the right to education in South Africa, only a few specifically focus on the right of undocumented migrant children to equitable education, and strategies to ensure its fulfilment. Thus, an explanation of equitable access to education in South Africa entails developing an approach for understanding undocumented migrant children’s educational experience, because this approach would provide a platform to achieve workable ways to ensure the fulfilment of their right to basic education. This research explores the difficulties undocumented migrant children experience in relation to education. Given this, an explanation regarding access to education for undocumented migrant children, from an equity viewpoint in South Africa, is developed. Thus, this study had three major aims. Firstly, to develop an understanding of equity in relation to access to education. Secondly, to investigate the impact (problems) of migration on undocumented migrant children in relation to equitable access to education in South Africa. Thirdly, to develop strategies that can ensure that these undocumented migrant children have their right to basic education protected in South Africa. Using the capability approach combined with Unterhalter’s (2009) description of equity as a three-fold concept as the study’s conceptual framework, I argue that ensuring equitable access to education for undocumented migrant children in South Africa requires an integrated approach, which goes beyond top-down strategies and highlights the role of agency. Each finding under the study’s objectives serves as evidence that support my overall argument for an integrated approach. A qualitative research design, from an interpretivist phenomenological lens provided me with the opportunity to carefully interact and bring forward the contextualised lived experiences of undocumented migrant children. This brought about an in-depth description of equitable access to education for them. The study was conducted with an NGO working with undocumented migrant children in the eastern region of the Johannesburg area in the Gauteng province of South Africa. The criterion used for selecting participants was based on the fact that the Project staff members, children who attend the Project, and their parents understand the social environment in which the children reside. They were able to give detailed and in-depth explanations on the impact of migration on their access to education, in an equitable manner. Gauteng Department of Education (GDE) officials who deal with undocumented migrant children, and South African Human Rights Commission (SAHRC) staff who deal with education also understand the impact of migration on these children’s chance to equitably access education and were included in the study. A total of 45 participants who were conveniently selected, based on the inclusion criteria, made up the sample size. Nineteen undocumented migrant children (n=19), eleven parents of undocumented migrant children (n=11), and fifteen professionals participated in this study (n=15). I served as the primary tool for data collection while employing different qualitative methods, including individual semi-structured interviews and focus group discussions. The method of data analysis I used for this study included an inductive and deductive approach using the NVivo QSR 12 software. From this method of data analysis, I identified three key themes relating to the specific objectives of the study. Objective 1: I found that undocumented migrant children, their parents, and professionals who deal with this group of children perceive equity to mean ‘the opportunity to thrive’ and ‘fairness’. In addition, under the first objective, it was found that equitable access to education is closely linked to being able to attend schools. While the undocumented migrant children described this in terms of the right to attend school and learn educational skills, the parent and professional participants explained it as a fundamental human right which should not be constrained by one’s legal status in South Africa. Along this line, it was also revealed that equitable access to education is important for various reasons including access to other services; capabilities, functioning, and the platform to achieve other human rights; and the avoidance of social ills. In all, equitable access to education strongly supports the human dignity of undocumented migrant children. Objective 2: Under objective two, I found that the impact of migration to South Africa, as it concerns equitable access to education for undocumented migrant children, was negative. Various problems faced by these children were identified. Firstly, the overarching problem was the lack of documentation which affects the opportunity for undocumented migrant children to equitably access school. This lack of documentation includes the non-issuance of proper birth certificates and so, the non-registration of the births of these children; and the fear of going to renew or apply for permits at the South African Department of Home Affairs (DHA) because of fear of police arrest. Secondly, the problem of continued discrimination, and xenophobic attacks and attitudes was also experienced by undocumented migrant children and their parents. These attacks affected their chance to access education. Thirdly, the lack of access to basic services presented itself as a difficulty which affects the opportunity to access schools, in an equitable way. Fourth, policy gaps, including ambiguities and non-implementation of recent court judgments, also served as problems which affect access to education for these children. Lastly, Covid-19 and the effects of the pandemic further compounded already existing difficulties undocumented migrant children face concerning their equitable access to education. Objective 3: The study revealed that strategies to address the problems experienced by undocumented migrant children include government-level, community-level, and individual-level strategies, and a combined, planned approach (integrated approach). Under government-level strategies, it was found that undocumented migrant children need to be issued birth certificates with identification or registration numbers and so, be appropriately registered at birth. Existing policies about education and immigration also need to be revised, and recent court judgments like the Phakamisa Judgment must be implemented. Also, stakeholders must be trained to ensure the proper implementation, monitoring, and evaluation of policies and recent judgments on equitable access to education for undocumented migrant children. As part of community-level strategies more assistance from NGOs, who bridge educational gaps for undocumented migrant children, would be useful in ensuring undocumented migrant children get educated. Individually, promoting social cohesion between migrants and non-migrants was highlighted. Also, parents of the identified children were encouraged to acquire documentation for their children. However, these different levels, on their own, are not sufficient to ensure equitable access to education. Thus, this study advocates an integrated approach to addressing the problems experienced by undocumented migrant children and their parents, regarding their children’s equitable access to education. Supporting this, the professionals interviewed recommend that all levels of society need to work together, in an organised way, to achieve access to education for the identified group of children. Also, the role of the agency and a bottom-up approach to ensuring access to education in an equitable way were highlighted through the integrated approach. Based on the findings, I argue that the various strategies identified require an integrated approach (for thinking and doing), which includes recognising the agency (individually and collectively) of undocumented migrant children. This approach draws on both top-down and bottom-up approaches with the significant roles of policy implementation, monitoring, and evaluation as well as agency (in both individual and collective forms) highlighted. Important is that this integrated approach (for thinking and doing) will be based on a thorough knowledge of the context. The findings thus serve as supporting empirical evidence for the overall thesis which is that to ensure equitable access to education is achieved, equity must be explained in detail, as a multi-faceted notion, and combined with the capability approach, which allows us to identify and interrogate specific structural limitations.Item Their Narrative: A Feminist Study Examining The Everyday Lives of Migrant Girls Who Sell Sex In Chipinge, Zimbabwe(University of the Witwatersrand, Johannesburg, 2023-08) Nyahuma, Gloria Nyaradzo; Oliveira, ElsaThis thesis explores the everyday experiences of unaccompanied migrant girls who sell sex in Chipinge, a small town in eastern Zimbabwe. The participants of this qualitative study were four adolescent girls, ages 16 to 18 years old, of Mozambique descent. Guided by feminist standpoint theory, intersectionality, and adolescent theory, the study examined three main areas: (1) factors that lead adolescent girls to migrate unaccompanied; (2) trajectories of unaccompanied migrant girls into selling sex; and (3) how unaccompanied migrant girls who sell sex access their daily needs in their host countries. Drawing on arts-based research (ABR), the main methods used were storytelling and mapping. Unstructured interviews were also conducted with each participant after the ABR phase of the study ended. Although each participant had unique circumstances that led them to migrate unaccompanied, most explained family circumstances such as, death of parents, violence in the home, and poverty as being immediate drivers for migrating to Zimbabwe alone. Each participant also had unique experiences that influenced their decisions to sell sex, but social networks and exploitation in other informal livelihood activities played a major role. Selling sex was the primary livelihood strategy that the participants in this study engaged, which enabled them to access their basic needs of accommodation, food, and childcare. Whilst being an important livelihood strategy, selling sex exposed the participants to risks of violence and health, including HIV.Item Effects of Restructuring on Technical and Vocational Education and Training College Lecturers(University of the Witwatersrand, Johannesburg, 2023) Molaudzi, Bellinah; Pillay, PundyThe aim of this study was to describe the effects that the restructuring (function shift process) of Technical and Vocational Education and Training (TVET) colleges had on lecturers at the South-West Gauteng TVET College. The study sought to answer the main research question, namely, “What are the effects of the restructuring of TVET colleges on lecturers at the South- West Gauteng TVET College?”. A qualitative phenomenological study was conducted. Data was collected through semi-structured interviews with lecturers at the college as well as officials at the Department of Higher Education and Training (DHET). The data was analysed using thematic analysis. Four themes emerged from data analysis and these are trust in the process, communication of the process, participation and support, and effects/impact of the restructuring. This study showed that restructuring can have adverse effects on academic staff when their interests and well-being are not being recognised by those that are implementing the change process. The study also found that senior managers at the college that were the focus of this study were not actively involved in the implementation of the function shift process. The role of college senior management was blurred, hence their minimal involvement in the functionshift process. Therefore, the study recommended that there is a need to conduct in-depth research into the effects of lecturers’ work interests on the outcome of the change process. The study further recommends future research that should investigate the effects of TVET College senior management during restructuring. Lastly, it is important to research the role that College senior management can play in ensuring that DHET change initiatives are speedily implementedItem Factors driving the adoption of platform-based solutions in rural/underserved markets(University of the Witwatersrand, Johannesburg, 2022-03) Nhlapo, Palesa; Magida, AyandaRural to urban migration causes an increase in economic activities, however, this trend also leads to a strain on urban infrastructure such public and private services e.g. transport, energy and health care infrastructure. The migration trend was overlaid with the platform business model such as online platform services which attempt to assist in addressing the infrastructure issues caused by the urban migration. There are factors which intervene in the migrant’s decision to either move from the rural area to the urban areas which is typically their place of work. Where the rural area provided more benefits, which caused the potential migrant to remain in the area, the factors are described as pull factors. If the rural area provides less reasons for the migrant to remain in the rural area, these factors are seen as push factors – which drive the migrant to move the urban area. These movements are largely pushing migrants to urban areas which causes a strain on urban infrastructure. Globally, online platforms services (e-commerce, e-government,social media, fintechs) are gradually becoming a key part of communication, job productivity, and daily living activities for both employers and customers. Locally, factors which drive migration to urban areas were also being influenced by online platform services which are becoming more accessible in the daily facilitation of life by both the employers and employees. In the studies reviewed, there has not been much done to evaluate whether technologies such as online platform services could aid in addressing the urban migration issue. There are polarities in thought that observe that while urban migration causes an increase in rural economic activities, it also causes strain on urban infrastructure as the population increases beyond the capacity of the urban infrastructure. The study investigated whether factors such as family, employer, employee, and online platforms caused an effect in the reduction of urban migration. Employers were found to be typically located in urban areas. The hard lock-down enforced due to the covid-19 pandemic helped satisfy that employee, employers, family and online platform services can be used to maintain productivity remotely (away from urban areas). The study found that (1) the employee was likely to migrate to urban areas based on their level of education and their province of origin, (2) the employers used online platform services to enable 2 productivity and there was adoption and lastly (3) there was low family influence on the decision to migrate. A recommendation for future research would be to investigate the migration efficiencies created in the context of the employer or the rural/underserved economy by the adoption of the online platform services.Item Factors affecting enterprise resource planning migration: the South African customer’s perspective(2021) Mushayi, Precious REnterprise resource planning (ERP) systems are a crucial and strategic component of most organisations’ information systems (IS). The advent of the digital economy has pushed traditional ERPs to evolve into intelligent ERP systems that are built to integrate with smart technologies such as artificial intelligence and machine learning. There is a need to understand how the digital economy has affected the design of ERP systems and how customers in developing countries are adapting to these changes. The purpose of this study was to identify the factors that influence the decisions of ERP customers in developing countries on whether to adopt intelligent ERP technologies such as SAP S/4 HANA. The technological-organisational-environmental and institutional theory frameworks were used as the foundation upon which the factors that influence intelligent ERP adoption were studied. The study focused on adopters and non-adopters of SAP S/4 HANA in the South African context. Guided by the positivist paradigm, a questionnaire-based survey was developed using theoretical constructs from existing studies of technology adoption and distributed to a sample of 95 companies, which were selected through purposive sampling. Nine factors were hypothesised to have an impact on intelligent ERP adoption, namely information, communication and technological (ICT) infrastructure, the availability of cyber-security systems, technical skills, organisational size, top management support, coercive pressures, mimetic pressures, normative forces and governmental regulations. Based on the responses received from 84 organisations, four factors out of the nine initial factors were found to have a significant impact on intelligent ERP migration, namely ICT infrastructure, the availability of cyber-security systems, mimetic forces ,and normative pressures. This study may be useful to ERP vendors with customers in developing countries, to understand existing and potential customer perceptions of intelligent ERPs. It will also give insight to academics who seek to build on their understanding of technology adoption in developing countries, especially in this era of digital transformation.Item Application of South African VAT on e-commerce transactions(2017) Xaba, Nduduzo JustifiedThe present study sought to investigate self-selection among internal and international migrants in Gauteng by making use of the Gauteng City Region Quality of Life Survey data. The present study also sought to disentangle the effects of observed and unobserved characteristics in the self-selection of migrants by conducting Oaxaca-Blinder decomposition on overall employment and self-employment outcome variables. Preliminary descriptive statistics indicated that international migrants experienced markedly higher levels of employment than both locals and internal migrants driven by higher rates of informal and self-employment. System GMM analysis of pseudo panel data confirmed these results and showed that international migrants had a higher probability of employment and self-employment. Oaxaca Blinder decomposition indicated that unobserved characteristics explained the greatest share of the differences in the rates employment and self-employment of locals, internal migrants and international migrants. These results provide evidence for the positive selection of international migrants to Gauteng on unobservable characteristics relevant to the region’s labour market. Key Words Self-Selection; Migration; Self-Employment; EmploymentItem Caught in a gap? An examination and human rights assessment of immigration detention laws and practices in South Africa(2013-03-19) Tay, RoannaAbstract: This study examines the laws and practices relating to immigration detention in South Africa. It provides an in-depth examination of the legislation, with reference to known state practices and cases where migrants have been subjected to prolonged and repeated periods of immigration detention. The study highlights gaps in South African law that contribute to certain categories of migrants being especially vulnerable to immigration detention. Four categories are identified: (1) asylum seekers; (2) persons with difficulty obtaining travel documents; (3) stateless person; and (4) persons subject to other prohibitions against refoulement. The study offers recommendations for legislative reforms to fill the gaps in the law that contribute to these migrants’ vulnerability to immigration detention