Pukthuanthong, Kuntara; Visaltanachoti, Nuttawat - In: Applied financial economics 19 (2009) 16/18, pp. 1269-1281
Capital Asset Pricing Model (CAPM), which implies that idiosyncratic risk should not be priced because it would be fully … idiosyncratic risk is priced on a significantly positive risk premium for stock returns. The evidence is statistically and … economically significant. It overwhelmingly supports the prediction of existing theories that idiosyncratic risk is positively …