The mediating role of green procurement on the relationship between environmental knowledge and procurement sustainability: empirical study of firms in the western region of ghana

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Date
2023
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KNUST
Abstract
In recent times, sustainable practices have become a necessary necessity due to numerous environmental issues, including land degradation, global poverty, human rights absence, general health deficiencies and corporate governance. The general objective of the study was to assess the mediating role of green procurement on the relationship between environmental knowledge and procurement sustainability: empirical study of organizations in the Western region in Ghana. The study therefore focused on managers and senior staffs as representatives of their firms to collect data to test the relationships among the research model. A sample size of 200 was selected out of which questionnaires were administered to in order to gather data to measure the three main variables and test their relationships. All 200 questionnaires returned representing 100% response rate. This is an excellent percentage and it is based on these returned responses that findings of the study were obtained from, analysed and discussed. The findings revealed that there is a positive and significant relationship between environmental knowledge and procurement sustainability. Also, it was found that that there is a positive and significant effect between environmental knowledge and green procurement. However, it was realized that there is a negative effect between green procurement and procurement sustainability but it was statistically significant. Finally, in relation to the mediating effect of green procurement on the relationship between environmental knowledge and procurement sustainability, using the Sobel Test, it was found that the mediation effect of green procurement on the relationship 0 between environmental knowledge and procurement sustainability was significant as the p-value is close to zero (p = 0.69908891). However, From the findings, it was found that the effect of green procurement on procurement sustainability was negative though there was a positive effect between environmental knowledge and green procurement. This implies that green procurement does not positively mediate the relationship between environmental knowledge and procurement sustainability. As such, it can be said that green procurement does not positively mediate the relationship between environmental knowledge and procurement sustainability. It is therefore recommended that firms should iii thus increase their environmental knowledge as they offer even more potential for differentiation than manual sourcing and procurement, which are still important.
Description
A thesis submitted to the department of supply chain and information systems, institute of distance learning, Kwame Nkrumah university of science and technology, in partial fulfilment of the requirements for award of the degree of master of science procurement and supply chain management
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