[How are governance practices propagated across firms? This article proposes, and empirically verifies, that observed governance practices are partly the outcome of network effects among firms with common directors. While firms attempt to select directors whose other directorships are at firms with similar governance practices ("familiarity effect"), this matching of governance practices is imperfect because other factors also affect the director choice. This generates an "influence effect" as directors acquainted with different practices at other firms influence the firm's governance to move toward the practices of those other firms. These network effects cause governance practices to converge.]

How are governance practices propagated across firms? This article proposes, and empirically verifies, that observed governance practices are partly the outcome of network effects among firms with common directors. While firms attempt to select directors whose other directorships are at firms with similar governance practices (“familiarity effect”), this matching of governance practices is imperfect because other factors also affect the director choice. This generates an “influence effect” as directors acquainted with different practices at other firms influence the firm's governance to move toward the practices of those other firms. These network effects cause governance practices to converge.

[We explore whether central bank intervention improves liquidity in the interbank market during the current subprime crisis with unique trade and quote data from the e-MID, the only regulated electronic interbank market in the world. Central bank intervention consistently creates greater uncertainty in the interbank market. Prior to the crisis, the cover-to-bid ratio effectively conveys good and bad news from the central bank, but this link is broken during the crisis, suggesting that standard (and special) interventions that do not specifically target interbank asymmetric information fail to improve market liquidity. Our results suggest that the central bank should release stress tests for individual banks, provide interbank loan guarantees, or engage in direct asset purchases rather than simply providing more capital when counterparty risk poses systemic risk to the interbank market.]

[We document market anticipation of merger bids and show that less anticipated bids earn significantly higher announcement returns. Subsequent bidders in the industry experience significant and positive abnormal returns around the time of initial industry bid announcements. These results suggest that announcement period returns underestimate the wealth effects of bidding. After accounting for anticipation, bidding activity is, on average, a significant wealth-creating event. Moreover, bidders pursuing public targets increase shareholder wealth and bidders in stock swaps do not lose. These results contradict conventional wisdom. Our results shed light on the correct magnitude of acquisition returns and on the transfer of information throughout an industry around the time of an economic shock.]

[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 CEOs. Firms benefit, on average, from the presence of former CEOs on their boards. Firms with former CEO directors have better accounting performance, have higher relative turnover-performance sensitivity of the successor CEO, and can rehire their former CEO directors as CEOs after extremely poor firm performance under the successor CEOs.]

[This article studies differences in the information content of 870,000 news announcements in 56 markets around the world. In most developed markets, a firm's stock price moves much more on days with public news about the firm. In contrast, in many emerging markets volatility is similar on news and non-news days. We examine several hypotheses for our findings. Cross-country differences in stock price reactions are best explained by insider trading, followed by differences in the quality of the news dissemination mechanism. Our findings are useful for quantifying the extent of insider trading and how the financial media affects international markets.]

We document market anticipation of merger bids and show that less anticipated bids earn significantly higher announcement returns. Subsequent bidders in the industry experience significant and positive abnormal returns around the time of initial industry bid announcements. These results suggest that announcement period returns underestimate the wealth effects of bidding. After accounting for anticipation, bidding activity is, on average, a significant wealth-creating event. Moreover, bidders pursuing public targets increase shareholder wealth and bidders in stock swaps do not lose. These results contradict conventional wisdom. Our results shed light on the correct magnitude of acquisition returns and on the transfer of information throughout an industry around the time of an economic shock.

We explore whether central bank intervention improves liquidity in the interbank market during the current subprime crisis with unique trade and quote data from the e-MID, the only regulated electronic interbank market in the world. Central bank intervention consistently creates greater uncertainty in the interbank market. Prior to the crisis, the cover-to-bid ratio effectively conveys good and bad news from the central bank, but this link is broken during the crisis, suggesting that standard (and special) interventions that do not specifically target interbank asymmetric information fail to improve market liquidity. Our results suggest that the central bank should release stress tests for individual banks, provide interbank loan guarantees, or engage in direct asset purchases rather than simply providing more capital when counterparty risk poses systemic risk to the interbank market.

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 CEOs. Firms benefit, on average, from the presence of former CEOs on their boards. Firms with former CEO directors have better accounting performance, have higher relative turnover-performance sensitivity of the successor CEO, and can rehire their former CEO directors as CEOs after extremely poor firm performance under the successor CEOs.

This article studies differences in the information content of 870,000 news announcements in 56 markets around the world. In most developed markets, a firm's stock price moves much more on days with public news about the firm. In contrast, in many emerging markets volatility is similar on news and non-news days. We examine several hypotheses for our findings. Cross-country differences in stock price reactions are best explained by insider trading, followed by differences in the quality of the news dissemination mechanism. Our findings are useful for quantifying the extent of insider trading and how the financial media affects international markets.