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On The Efficiency Of Us Equity Markets, Mikael Carl Erik Bergbrant
On The Efficiency Of Us Equity Markets, Mikael Carl Erik Bergbrant
USF Tampa Graduate Theses and Dissertations
Most papers in empirical finance implicitly or explicitly assume the same price of risk, for each priced systematic risk factor, across all risky assets within a given domestic market. In doing so, they rely on the assumption that markets are domestically integrated and, as such, that the price of risk is determined independently of individual investors attitude towards risk. This is true in frictionless markets where investors have complete information, homogenous beliefs, and hold the mean-variance efficient combination of the market portfolio and a risk-free asset. However, investors might not hold the market portfolio because of exogenous reasons. In fact, …