This paper investigates the behavior of stock and option prices around block trades in stocks. The results indicate that for both uptick and downtick block trades the stock prices adjust within a fifteen minute period after the block trade. Moreover, for uptick blocks there is no evidence of any...

The authors provide evidence on the agency cost explanation for corporate diversification. They find that the level of diversification is negatively related to managerial equity ownership and to the equity ownership of outside blockholders. In addition, the authors report that decreases in...

We find that option listings are associated with a decrease in the variance of the pricing error, a decrease in the adverse selection component of the spread, and an increase in the relative weight placed by the specialist on public information in revising prices for the underlying stocks. We...

The authors examine the impact of changes in equity-option margin requirements on the liquidity of options and underlying stock markets. They find that the decrease in margin was associated with an increase in spreads and trade informativeness, and a decrease in depth for the underlying stocks....

Returns on international equities are characterized by jumps; moreover, these jumps tend to occur at the same time across countries leading to "systemic risk". We capture these stylized facts using a multivariate system of jump-diffusion processes where the arrival of jumps is simultaneous...