Building on recent developments in behavioral asset pricing, we develop a model in which an increase in the dispersion of investor beliefs under short-selling constraints predicts a "bubble," or a rise in a stock's price above its fundamental value. Our model predicts that managers respond to...

Q-theory predicts that investment frictions steepen the relation between expected returns and firm investment. Using financing constraints to proxy for investment frictions, we document only weak evidence that the investment-to-assets and asset growth effects in the cross-section of returns are...

The neoclassical investment model matches cross-sectional asset prices both in first differences and in levels. With ten book-to-market deciles as the testing portfolios, the investment model largely matches the Tobin's Q spread, while maintaining a good fit for the average return spread across...

The prolonged investment decline in post-Asian crisis emerging Asia, in contrast to the swift recovery of economic growth, has remained a puzzle. This paper shows that the post-crisis investment recession has been mainly concentrated in the nontradable sector, and hypothesizes that the slowdown...

The effect of uncertainty on equilibrium wage rates causes uncertainty to have a negative impact on marginal q. In turn, uncertainty reduces corporate investment and employment. Using a novel firm-level measure of cash flow uncertainty, we find empirically that uncertainty has a strong negative...

A generalized version of the standard neoclassical investment model can explain the relatively high equity prices in the late 1990s and early 2000s in the US corporate nonfinancial and NASDAQ sectors along with the relatively low prices before and after this period. Stock returns predicted by...

We revisit the empirical performance of the Q theory of investment, explicitly taking into account the frequency dependence of investment, Tobin's Q, and cash flow. The time series are decomposed into orthogonal components of different frequencies using wavelet multiresolution analysis. We find...

A new methodology for equity valuation arises from the perspective of managers' supply of capital assets. Under q-theory, managers optimally adjust the supply of assets to changes in their market value. The first-order condition of investment then provides a valuation equation that infers asset...

We derive and test q-theory implications for cross-sectional stock returns. Under constant returns to scale, stock returns equal levered investment returns, which are tied directly to firm characteristics. When we use GMM to match average levered investment returns to average observed stock...

We derive and test q-theory implications for cross-sectional stock returns. Under constant returns to scale, stock returns equal levered investment returns, which are tied directly to firm characteristics. When we use GMM to match average levered investment returns to average observed stock...