This article analyzes the manifold situations in which the efficient-market hypothesis (EMH) has influenced—or has failed to influence—federal securities regulation and state corporate law, and the prospective roles for the EMH in these contexts. In federal securities regulation, the EMH has...

In this paper, I estimate the effect of mandatory greenhouse gas (GHG) emissions disclosure on corporate value. Using the introduction of mandatory GHG emissions reporting for firms listed on the Main Market of the London Stock Exchange as a source of exogenous variation, I find that firms most...

This is a preliminary study on the status of the U.S. in the global market for derivatives-related services. We include some of the policy choices available to enhance this status. We begin with a review of the importance of active and efficient derivatives markets for the U.S. economy. We then...

The 1964 Securities Acts Amendments extended the mandatory disclosure requirements that had applied to listed firms since 1934 to large firms traded Over-the-Counter (OTC). We find several pieces of evidence indicating that investors valued these disclosure requirements, two of which are...

We study the impact of the announcement of enforcement of financial and securities regulation by the UK’s Financial Services Authority and London Stock Exchange on the market price of penalized firms. Since these agencies do not announce enforcement until a penalty is levied, their actions...

We investigate the effect of standard setters in standard setting. We examine how certain professional and political characteristics of FASB members and SEC commissioners predict the accounting “reliability” and “relevance” of proposed standards. Notably, we find FASB members with...

This study analyzes information production and trading behavior of banks with lending relationships. We combine trade-by-trade supervisory data and credit-registry data to examine banks' proprietary trading in borrower stocks around a large number of corporate events. We find that relationship...

Innovation. The word is evocative of ideas, products and processes which have somehow made the world a better place. Prior to the global financial crisis, many viewed financial innovation as unequivocally falling into this category. Underpinning this view was a pervasive belief in the...

In this study, I examine whether firms and executives with long-term political connections through contributions and lobbying incur lower costs from the enforcement actions by the Securities and Exchange Commission (SEC). I find that politically connected firms on average are less likely to be...