This paper takes a new approach to examine whether investors extrapolate from past returns to form expectations about future stock returns. Unlike prior research that relies on experiments or surveys to derive investors' expectations, we estimate expected returns directly from stock prices, the...

We examine, in a controlled experimental setting, whether changes in investor mood cause changes in the determinants of stock prices. Our results show that a deterioration in mood, reflected in the negative dimensions of mood state, increases the level of risk aversion in male, but not female,...