Evolution of decision usefulness of sustainability reports

This paper provides a historical context to sustainability reporting practices of listed companies by tracing their origin and developments to determine whether such developments have resulted in decision useful reports. Using a literature review, this paper highlights the developments in the sustainability reporting practices from the 1960s to date. The findings are interpreted using the lens of legitimacy theory.
The findings indicate a dramatic improvement in the decision usefulness of sustainability reports produced by listed companies from the deceptive advertisements by companies in the 1960’s to relevant, reliable, timely, comparable, verifiable and understandable reports in year 2012. The findings further suggest a change in legitimizing strategies from manipulation of the public to an attempt to genuinely educate and inform the public, which confirms the explanatory power of legitimacy theory in explaining voluntary sustainability reporting. This paper makes a number of original contributions to the literature that attempts to explain the motives of sustainabi-lity reporting. First, it is one of the few studies that have employed legitimacy theory to explain the evolution of sustainability reports. Second, it is unique in that it uses legitimacy theory to explain the evolution of decision usefulness of sustainability reports