Electronic Theses and Dissertations (PhDs)

Permanent URI for this collectionhttps://hdl.handle.net/10539/37876

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    Growth effects of human capital and innovation in small and medium sized South African firms before and after the Covid-19 pandemic
    (University of the Witwatersrand, Johannesburg, 2024) Maingehama, Francisca Nyasha; Callaghan, Chris
    This thesis examines the growth of small and medium-sized enterprises (SMEs) in South Africa before and after the COVID-19 pandemic. The COVID-19 pandemic introduced new challenges, which makes this research relevant for contemporary issues in firm growth. The problem addressed in this study was the need to understand how various factors, such as human capital, innovation, entrepreneurial orientation and motivation, affect SME growth. Previous research has focused mainly on organisational-level determinants without considering how these factors interact in a post-COVID-19 context. This gap is particularly relevant in South Africa, where SMEs face high failure rates despite efforts to support entrepreneurship. The study filled this gap by exploring the specific growth dynamics of SMEs in this contemporary and challenging context. Several key research questions guided the study and aimed to achieve two main objectives. The study used a two-phase methodology. First (Phase 1), it systematically reviewed the literature to synthesise knowledge on human capital, innovation, and firm growth before the COVID-19 pandemic. The systematic literature review analysed 206 articles published between 2000 and 2020 using descriptive statistics, bibliometric analysis, and content analysis to synthesise pre-pandemic research. Secondly (Phase 2), it developed and tested a theoretical model to understand the relationship between human capital, innovation, entrepreneurial orientation, motivation and SME growth in South Africa post- pandemic. In this phase, primary data was collected using a structured questionnaire with 497 responses from small firm owner-managers and analysed using Smart PLS (version 3.2.9). This research adopted a positivist philosophy, focussing on empirical patterns and causal relationships. Key findings indicated that innovation mediates the relationships between entrepreneurial orientation, human capital, and the growth of SMEs. Human capital has a direct impact on firm growth in the post-pandemic context. At the same time, motivation significantly mediated the link between entrepreneurial orientation and growth, though its effect on the human capital-growth relationship was less pronounced. This study advances knowledge by providing a detailed analysis of SME growth determinants in a post-pandemic context, offering a customised theoretical model for South African SMEs. This study also has practical implications, providing insight for SMEs and policymakers to enhance innovation capabilities and adapt strategies to post-pandemic challenges. Future research could explore the long-term ii impacts of COVID-19 on firm growth, the role of additional contextual variables, and comparative studies in different regions or sectors.
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    Organisational culture, innovation, and environmental performance in South African iso 14001 certified organisations
    (University of the Witwatersrand, Johannesburg, 2022-06) Nokaneng, Tshepo Isaiah; Callaghan, Chris
    This study investigates the link between organisational culture, innovation, and organisational environmental performance, with a focus on South African ISO 14001-certified organisations. The study uses Hofstede's Cultural Dimensions Theory and the competing values framework to make predictions and collects empirical data from 400 SABS-certified organisations using PLS-SEM. The findings are of interest to academics, organisations, and researchers and have potential for future studies to build upon. The study found that human resource management (HRM) policies are more effective in cultures that prioritise collectivism, masculinity, uncertainty avoidance, and developmental and rational culture. Labour relations also predict innovation and organisational environmental performance (OEP). The Schwartz individual values (SIV) model shows that age predicts openness to change, and the industrial sector predicts intrinsic satisfaction factors, conservation, and self enhancement values. Position predicts intrinsic satisfaction, conservation and self-enhancement values, openness to change, self-transcendence, and extrinsic satisfaction. Organisational tenure negatively predicts conservation and self- enhancement values, openness to change, self-transcendence values, and intrinsic and extrinsic satisfaction. The industrial sector positively predicts individual environmental performance. These findings can aid policymakers, managers students, researchers, and practitioners in enhancing innovation, OEP, individual environmental performance (IndEP) and contributing to sustainability management literature using Hofstede cultural dimensions theory (CDT), competing values framework (CVF), Schwartz's values and motivational factors. This study provides evidence of the effects of cultural dimensions on OEP and identifies mediating or moderating factors. The findings offer knowledge to improve OEP, inform policymakers, and add value to managers, students, researchers, and practitioners. The study aids in implementing and improving environmental management systems, thus enhancing OEP. It also provides insights into using Schwartz's values and motivational factors that could enhance IndEP and contribute to the sustainability management literature