We develop statistical methods to detect informed trading in options markets. We apply these methods to 31 companies from various sectors over 14 years analyzing approximately 9.6 million option prices. We find that option informed trading tends to cluster prior to certain events, takes place...

This appendix extends the empirical results in Chesney, Crameri, and Mancini (2011). Informed trading activities on put and call options are analyzed for 19 companies in the banking and insurance sectors from January 1996 to September 2009. Our empirical findings suggest that certain events such...

This paper empirically analyses the effect of foreign block acquisitions on the U.S. target firms' credit risk as captured by their CDS. The involvement of foreign investors leads to a significant increase in the target firms' CDS spreads. This effect is stronger when foreign owners are...

Poor corporate governance permits unreliable financial reporting by a firm's management. The AGR governance rating is based on the premise that a more accurate assessment of the effects of corporate governance can be formulated by taking this output of corporate governance into account in...

We study the shareholder value implications of a shift in the corporate balance of power towards shareholders. We find that in response to an unanticipated event that made it likely that an annual binding shareholder vote on management pay would become compulsory for Swiss public companies, the...

I study a protectionist anti-takeover law introduced in 2014 that covers a subset of all firms in the economy. The law decreased affected firms' likelihood of becoming the target of a merger or acquisition and had a negative impact on shareholder value. There is no evidence that management of...

We examine the effects of mandatory ESG disclosure around the world using a novel dataset. Mandatory ESG disclosure increases the availability and quality of ESG reporting, especially among firms with low ESG performance. Mandatory ESG reporting has in turn beneficial effects on firm’s...

Donald Trump's election and his nomination of Scott Pruitt, a climate skeptic, to lead the Environmental Protection Agency drastically downshifted expectations on US climate-change policy. We study firms' stock-price reactions and institutional investors' portfolio adjustments after these...

We develop a dynamic model of corporate investment and financing decisions in which corporate insiders have superior information about the firm's growth prospects. We show that firms with positive private information can credibly signal their type to outside investors using the timing of...

We investigate corporate governance experts' claim that it is detrimental to a firm to reappoint former CEOs as directors after they step down as CEOs. We find that more successful and more powerful former CEOs are more likely to be reappointed to the board multiple times after they step down as...