Investment-Based Momentum Profits
We offer an investment-based explanation of momentum. The neoclassical theory of investment implies that expected stock returns are related to expected investment returns, defined as the next-period marginal benefits of investment divided by the current-period marginal costs of investment. Empirically, winners have higher expected growth of investment-to-capital and higher expected marginal product of capital and consequently higher expected stock returns than losers. The investment-based expected return model captures well the momentum profits across a wide array of momentum portfolios. However, the individual alphas for several testing portfolios are large. All in all, we conclude that momentum is consistent with the value maximization of firms.
|Date of creation:||Sep 2010|
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