Thesis (Ph. D. Commerce (Business Management)) -- University of Limpopo, 2021 / The current work assessed the link between environmental sustainability commitment and financial performance of firms listed on the Johannesburg Stock Exchange (JSE). Broadly, the researcher aimed to establish whether environmental sustainability commitment as measured by energy efficiency, water efficiency, waste management, carbon emission reduction, material efficiency, green products and services innovation, environmental compliance and stakeholder engagement do affect financial performance. Furthermore, the study tested the moderation effect of industry type on the link between environmental sustainability commitment and financial performance. The study was quantitative in nature with a case study research design. The longitudinal design was adopted where the researcher collected panel data from 2011-2018. The population of the study included all firms listed on the JSE Responsible Investment Index in South Africa. The sample constituted of 32 firms listed on the FTSE/JSE Responsible Investment Index in South Africa. The researcher employed panel regression analysis model to analyse the data. Specifically, the Feasible Generalised Least Squares regression model was utilised in this study. Financial performance was treated as the dependant variable and was measured using return on equity (ROE), return on assets (ROA), earnings per share (EPS), share price and Tobin’s q. The independent variables of the study included components of environmental sustainability; energy efficiency, water efficiency, waste management, carbon emission reduction, material efficiency, green products and services innovation, environmental compliance and stakeholder engagement. Control variables such as firm size and liquidity were used in the study. Mixed findings emerged from the statistical tests. The findings on the relationship between energy efficiency and financial performance suggested that energy efficiency has no significant effect on financial performance as measured by ROE, ROA and Tobin’s Q. Conversely, a significant and negative link was established when energy efficiency was tested against EPS and share price. A significant positive relationship was established between water efficiency and EPS as well as share price. The results further revealed that being water efficient may not significantly affect financial performance when ROE, ROA and Tobin’s Q are used. The results showed no significant relationship between waste management and all dependent variables. The findings indicated that carbon emission reduction was positively and significantly related to EPS and share price. Nevertheless, it was discovered that the nexus between carbon emission reduction and measures of financial performance such as ROE, ROA and Tobin’s Q was positive but insignificant. In terms of material efficiency and financial performance, the findings indicated that material efficiency had an insignificant effect on ROE, ROA, share price and Tobin’s Q. Nevertheless, a significant and negative relationship was established between material efficiency and EPS. Considering green products and services innovation and performance, the findings established a significant negative relationship between green products and services innovation and share price. However, the results further indicated that the link between green products and services innovation and ROE, ROA, EPS as well as Tobin’s Q was insiginificant. The findings exhibited that environmental compliance was negatively related to ROE and Tobin’s Q yet positively related to EPS and share price. An insignificant relationship was established between environmental compliance and ROA. Stakeholder engagement was found to be positively related to EPS. It was also found that the effect of environmental sustainability commitment on financial performance did not differ based on the industry type. The findings rather showed that firms within each industry had specific environmental sustainability commitment and financial performance combinations which were unique to that industry. It was also found that industry type significantly moderates the relationship between environmental sustainability commitment and financial performance. It was concluded that firms can enhance their financial performance from environmental investments which are unique to certain industries as determined by key stakeholders in that sector. Recommendations were made to different stakeholders such as the government, corporate managers and organisations which provide environmental reporting guidelines to play an active role in promoting environmental sustainability commitment among firms. Keywords: environmental sustainability commitment; financial performance; firms; sustainable development; Johannesburg Stock Exchange; South Africa

Efterfrågan på hållbarhetsinformation är något som ökar i dagens samhälle. Samtidigt visar tidigare studier att det finns allvarliga brister i företags hållbarhetsrapporter. Forskare har dessutom konstaterat att revisorer har en kvalitetssäkrande roll för hållbarhetsrapporters trovärdighet. I takt med samhällsutvecklingen växer hållbarhetstjänster inom revisionsbranschen, och det går att skönja ett proaktivt hållbarhetsarbete hos revisorer. Något som oss veterligen inte studerats tidigare är vad som driver revisorers proaktiva hållbarhetsarbete. Syftet med studien är att förklara vad som driver revisorers proaktiva hållbarhetsarbete utifrån fyra individ- och byråspecifika faktorer. Dessa faktorer är byråtillhörighet, kompetens, individens hållbarhetsengagemang och hierarkisk position. Frågeställningen är: I vilken utsträckning kan revisorers proaktiva hållbarhetsarbete förklaras utifrån fyra individ- och byråspecifika faktorer? Legitimitetsteorin, professionsteorin och institutionella teorin har använts som teoretisk ram för att uppnå studiens syfte. Även litteratur som behandlar hållbarhetsrapportering, autonomi, proaktivt agerande och de fyra faktorerna har använts. Med utgångspunkt i litteraturen har sex hypoteser bildats, vilka sedan testats empiriskt. För att samla in data konstruerades en webbenkät som sedan skickades ut via mejl till revisorer runtom i Sverige. Resultaten av studien visar att det finns ett positivt samband mellan revisorers proaktiva hållbarhetsarbete och kompetens, yrkesmässigt såväl som privat hållbarhetsengagemang respektive hög hierarkisk position. Däremot gick det inte att påvisa att byråtillhörighet och tid i branschen skulle vara förklarande faktorer till revisorers proaktiva hållbarhetsarbete. Studiens viktigaste bidrag är att ge revisionsbranschen insikter i vad som driver proaktivt hållbarhetsarbete bland revisorer. Studien upplyser också samhället om att revisorers proaktiva hållbarhetsarbete kan gynna hållbarhetsutvecklingen i samhället. / Demand for CSR information is increasing in today’s society. At the same time, previous studies show some serious deficiencies in CSR reporting. Researchers have also found that CSR reports certified by a financial auditor are perceived as more credible. CSR services are a growing business area in the audit industry, and a proactive CSR work among auditors can be discerned. As far as we are aware, there has yet to be any research conducted on what influences auditors’ proactive CSR work. The purpose of this study is to explain what influences auditors’ proactive CSR work based on four individual- and agency specific factors. The research question is: To what extent are auditors’ proactive CSR work explained by four individual- and agency specific factors? Legitimacy-, professional-, and institutional theory, and literature that deals with CSR reporting, autonomy, proactive behavior and our four factors has been used as a theoretical framework. Based on the literature, six hypotheses have been formed, which later have been empirically tested. Data was collected through a web-based survey which was sent via e-mail to Swedish auditors. The results show that there is a positive relationship between auditors’ proactive CSR work and competence, dedication to sustainability issues – professionally as well as private, and high hierarchical position. It was not possible to demonstrate that agency affiliation or time in the industry would be an explanatory factor for auditors’ proactive CSR work. The main contributions of this study are to provide the audit industry with insights into what influences auditors’ proactive CSR work. The study also informs society that auditors’ proactive CSR work can benefit the sustainable development.