We develop a theory of market crashes based on differences of opinion among investors. Because of short-sales constraints, bearish investors do not initially participate in the market and their information is not revealed in prices. However, if other previously bullish investors bail out of the market, the originally bearish group may become the marginal "support buyers," and more will be learned about their signals. Thus accumulated hidden information comes out during market declines. The model explains a variety of stylized facts about crashes and also makes a distinctive new prediction—that returns will be more negatively skewed conditional on high trading volume.

We examine the link between the excess value of a diversified firm and the value of its internal capital market. Subsidies to small financially constrained segments with good relative investment opportunities significantly increase excess value, while transfers of resources from segments with good relative investment opportunities significantly decrease excess value. Of interest is that subsidies to small financially constrained segments with poor relative investment opportunities also significantly increase excess value. However, there is little evidence that this result depends on the diversity of a firm's investment opportunities. We conclude that financing constraints drive the relationship between the internal capital market and firm value.

We find that executives who jump to chief executive officer (CEO) positions at new employers come from firms that exhibit above-average stock price performance. This relationship is more pronounced for more senior executives. No such relationship exists for jumps to non-CEO positions. Stock options and restricted stock do not appear to significantly affect the likelihood of jumping ship, but the existence of an "heir apparent" on the management team increases the likelihood that executives will leave for non-CEO positions elsewhere. Hiring grants used to attract managers are correlated with the equity position forfeited at the prior employer and with the prior employer's performance.

We develop a theory of market crashes based on differences of opinion among investors. Because of short-sales constraints, bearish investors do not initially participate in the market and their information is not revealed in prices. However, if other previously bullish investors bail out of the market, the originally bearish group may become the marginal “support buyers,” and more will be learned about their signals. Thus accumulated hidden information comes out during market declines. The model explains a variety of stylized facts about crashes and also makes a distinctive new prediction—that returns will be more negatively skewed conditional on high trading volume.

We find that executives who jump to chief executive officer (CEO) positions at new employers come from firms that exhibit above-average stock price performance. This relationship is more pronounced for more senior executives. No such relationship exists for jumps to non-CEO positions. Stock options and restricted stock do not appear to significantly affect the likelihood of jumping ship, but the existence of an “heir apparent” on the management team increases the likelihood that executives will leave for non-CEO positions elsewhere. Hiring grants used to attract managers are correlated with the equity position forfeited at the prior employer and with the prior employer's performance.

We examine the link between the excess value of a diversified firm and the value of its internal capital market. Subsidies to small financially constrained segments with good relative investment opportunities significantly increase excess value, while transfers of resources from segments with good relative investment opportunities significantly decrease excess value. Of interest is that subsidies to small financially constrained segments with poor relative investment opportunities also significantly increase excess value. However, there is little evidence that this result depends on the diversity of a firm's investment opportunities. We conclude that financing constraints drive the relationship between the internal capital market and firm value.