The purpose of this research was to examine how social issues are perceived and addressed in the food and drink sector, focusing on the narrower context of Nigerian purchasing practices, identifying the drivers, and barriers to the adoption of socially responsible purchasing (SRP) in the organisational supply chains. This research is underpinned by the stakeholder and institutional theories with the use of Carroll's CSR pyramid to explain the perceptions of stakeholders and the level at which each of the practices is in the pyramid. An in-depth study was conducted in multinational and indigenous food and drink organisations in Nigeria. Data was gathered from practitioners comprising of employees, managers, and executives by means of questionnaires and semi-structured face-to-face interviews to triangulate data sources. Drawing on the data collected, respondents' perspective of the meaning of socially responsible purchasing provided new insights into the phenomenon with various meanings and contestations. The findings suggest that socially responsible purchasing practices have a moderate positive influence on the organisations' supply chains within an unstable economic environment. Some of the practices were perceived to be voluntary and having an ethical underpinning while others were related to legal responsibilities. The findings suggest that the moderate influence is due to internal and external factors within the institutional environment. This research context was restricted to private organisations in the food and drink sector in Nigeria which might limit the generalisation of the findings. However, the findings may be transferable to other sectors of the economy where socially responsible purchasing issues are addressed in the supply chains. In practice, SRP is perceived to be an important element of CSR and supply chains despite the barriers to its implementation. The practices should be properly implemented to help in the sustenance of organisational supply chains. This research will be insightful for other industrial sectors as well as developing economies in Africa. The findings advance the stakeholder and institutional theories by providing an in-depth perception of various stakeholders and SRP practices within the institutional environment of organisations' supply chains. The research has contributed to enriching the literature on CSR and supply chains sustainability in Nigeria which has a relative shortage of literature on CSR and supply chain.

This thesis explores in depth the factors influencing growth in small and medium enterprises (SMEs) from a supply chain perspective and examines how entrepreneurship affects them in Omani SMEs. The study is undertaken in order to complement the scarce literature on SMEs related to supply chains and improve the understanding of what factors are crucial in determining growth in them. The research is focused on the role of entrepreneurial qualities and behaviours for the growth of SMEs in developing countries, as their economies are more dependent on smaller companies. The context of this research is within Oman, which represents a typical developing economy containing a large number of active SMEs. The main factors for SMEs growth are identified through a literature review of past and contemporary research studies on supply chain networks, SMEs, growth and entrepreneurship. The factors are divided into areas related to the positions of the company (market position of the firm, negotiating power, Supply chain relationships and firm's image), and to SMEs' value-adding capabilities (cost optimisation, and innovations). The review also reveals that the critical entrepreneurial traits are: managers' culture and motivations, strategic thinking, sense for opportunities, risk-taking, continuous learning, their leadership abilities and networking skills. Based on the literature review findings a conceptual framework is proposed. This research is exploratory and explanatory in nature and relies on a qualitative approach to find out how entrepreneurship relates to growth in SMEs. Primary data is collected from in-depth semi-structured interviews with managers in 25 Omani SMEs from various industrial and service sectors 10 representing different supply chain positions. The data is processed through content analysis using the factors identified from the literature review as initial themes. The findings affirm the importance of SMEs' supply chain positions and their value adding capabilities for growth. Furthermore, all elements of entrepreneurship are found to affect growth factors. Results show positive attitude and growth aspirations lead to more proactive market behaviour, while strategic thinking helps managers choose more sustainable market positions. Results indicate leadership improves company costs by increasing employees' motivation and productivity and also facilitates the implementation of innovations. Learning orientation is stated to be crucial for exploring new ideas for innovations, while a good sense for opportunity helps managers evaluate them and choose the right ones. Finally, risk-taking propensity emerges as instrumental in the actual undertaking of innovation projects as it is needed for initiating them.

Until recently, academic and practitioner research on clinical trial supply chains focused on identifying innovative models and solutions in providing comparator and study drugs to global clinical sites. Due to the expansion of outsourcing efforts by pharmaceutical organizations, newly enacted global laws and regulations, and the continued push to increase the speed at which new drugs gain market approval, a new and extremely complex global “ancillary” supply chain has emerged. This manuscript focuses on the clinical trial ancillary supply chain: a supply chain that develops the end-to-end process resulting in the distribution and quality management of medical products and devices, consumable supplies, and patient giveaways to global clinical trial sites. Based on a series of quantitative analyses, this research assesses the influence of the customer, country, and product on the overall success of the supply chain. Three factors emerged from these analyses as having a direct influence on the clinical trial ancillary supply chain; product characteristics, magnitude (components of size), and stability (components of changes in scope). Part II of this research sought to understand the success of the supply chain by evaluating the moderating effects of knowledge management, organizational culture, therapeutic area, and type of shipment. Assessments of 444 customer and server surveys yielded components of a sense of shared culture, shared communication and transparency, and feeling educated and supported. Quantitative data analysis supported that these components had a moderating influence on success during the pre-trial phase of the supply chain. These research findings provide insight into the internal and external drivers of success within the complex and emergent clinical trial supply chain – a supply chain that helps pharmaceutical organizations bring innovative therapies to market and most important, those patients in need of such therapies to improve or even save their lives. / Business Administration/Interdisciplinary