The Effect of Business Education on the Ethics of Students: An Empirical Assessment Controlling for Maturation

This study empirically assesses the relative impact of business education on students' ethics while accounting for the potentially confounding effects of maturation and starting position. It finds that business education does not negatively effect the ethical development of students relative to the effect caused by non-business education.     

Divergence of Opinion Surrounding Extreme Events

This paper examines the stock market performance of a large sample of new issues (IPOs and SEOs) following an extreme price movement during the first three years after the offering. Strong underperformance follows either a positive or negative (at least +/?15%) one‐day return event. This poor performance cannot be explained by the Fama‐French four‐factor methodology, or by the generally low stock returns of growth firms. Unlike recent issuers, non‐issuers report no poor performance following a similar extreme event using the four‐factor methodology. The extreme event date shows very high levels of turnover, a measure of divergence of opinion. Finally, there is a strong negative linkage between higher levels of divergence of opinion and subsequent stock performance.     

A discrete-time model for daily S & P500 returns and realized variations: Jumps and leverage effects

We develop an empirically highly accurate discrete-time daily stochastic volatility model that explicitly distinguishes between the jump and continuous-time components of price movements using nonparametric realized variation and Bipower variation measures constructed from high-frequency intraday data. The model setup allows us to directly assess the structural inter-dependencies among the shocks to returns and the two different volatility components. The model estimates suggest that the leverage effect, or asymmetry between returns and volatility, works primarily through the continuous volatility component. The excellent fit of the model makes it an ideal candidate for an easy-to-implement auxiliary model in the context of indirect estimation of empirically more realistic continuous-time jump diffusion and Lévy-driven stochastic volatility models, effectively incorporating the interdaily dependencies inherent in the high-frequency intraday data.     

The effect of ceded reinsurance on solvency of primary insurers

Primary insurance companies diversify their underwriting risk and thus improve their financial stability through buying reinsurance contracts. However, excessive use of reinsurance by an insurance company may signal the presence of financial difficulties. In fact, as research shows, a less solvent insurer tends to use more reinsurance because of its inability to raise needed capital in the financial market. Thus, regulators need to pay extra attention to insurers that overly use reinsurance since such behavior could signal an insurer's disproportionately high risk and its eventual probability of insolvency.     

Learning by doing: Cross-border mergers and acquisitions

We rely on organizational learning theory and strategic momentum research to examine the international merger and acquisition (M&A) activities of a sample of S&P 500 firms. We hypothesize that the learning associated with a firm's prior acquisition experience increases the likelihood the firm will engage in subsequent international acquisitions. Results from a sample including company-country level data indicate that both prior domestic acquisitions and international acquisitions influence the likelihood of acquisitions in foreign markets by U.S.-based firms. We also find that prior experience with international acquisitions is more predictive of subsequent international acquisitions than prior domestic acquisition experience. Moreover, we find that the acquisition experience within a host country had a stronger influence on subsequent acquisitions within that country than other prior non-host country international acquisition experiences.