The Capital Asset Pricing Model (CAPM) has far-reaching practical implications for both investors and corporate managers. The model implies that the market portfolio is mean variance efficient, and thus advocates passive investment. It also provides the most widely used measure of risk, beta,...

To attenuate an inherent errors-in-variables bias, portfolios are widely employed for risk premium estimation; but portfolios might diversify away and thus mask relevant risk- or return-related features of individual assets. We propose a resolution that allows the use of individual assets while...

Recent academic studies indicate that acquirers' cumulative abnormal returns (CAR) decline from deal to deal in acquisitions programs. Does this pattern suggest hubristic CEO behaviors are significant enough to influence average CAR patterns during acquisitions programs? An alternative...

This paper provides a compact summary of the evidence on capital structure instability and a case-based exploratory investigation of sources of such instability. Substantial instability in capital structure is the norm at publicly held nonfinancial firms. Firm-specific episodes of leverage...

To attenuate an inherent errors-in-variables bias, portfolios are widely employed to test asset pricing models; but portfolios might mask relevant risk- or return-related features of individual assets. We propose an instrumental variables approach that allows the use of individual stocks as test...