Diversified firms have different values than comparable portfolios of single-segment firms. These value differences must be due to differences in either future cash flows or future returns. Expected security returns on diversified firms vary systematically with relative value. Discount firms...

We test whether the impact of financial constraints on firm value is observable in asset" returns. We form portfolios of firms based on observable characteristics related to financial" constraints, and test for common covariation in the stock returns of these firms. Using several" different...

Does corporate diversification reduce shareholder value? Since firms endogenously choose to diversify, exogenous variation in diversification is necessary in order to draw inferences about the causal effect. We examine changes in the within-firm dispersion of industry investment, or diversity.'...

We test whether the impact of financial constraints on firm value is observable in stock returns. We form portfolios of firms based on observable characteristics related to financial constraints and test for common variation in stock returns. Financially constrained firms' stock returns move...

We use mutual fund flows as a measure of individual investor sentiment for different stocks, and find that high sentiment predicts low future returns. Fund flows are dumb money-by reallocating across different mutual funds, retail investors reduce their wealth in the long run. This dumb money...