An abstract of a dissertation that examines different dimensions of legitimacy stemming from different sources, and how they condition the effects of each other. The traditional literature studies organizational legitimacy as a uni-dimensional phenomenon, however, there are multiple audiences with different systems of values that evaluate organizations and based on the fit with their values grant or withdraw legitimacy from the firm. This dissertation examines three different dimensions of legitimacy (i.e. social, market, and home country) and shows that they may substitute each other in affecting organizational outcomes. This is shown in a financial event study of additions and deletions from the Dow Jones Sustainability Index, a qualitative study of the nature of corporate social responsibility (CSR) in the emerging market of Russia, and a large-scale quantitative analysis of M&A deals, where the acquirer comes from Brazil, Russia, India, China and South Africa (BRICS).
