Knowledge that Transforms

A growing literature establishes that high quality early childhood interventions targeted toward disadvantaged children have substantial impacts on later life outcomes. Little is known about the mechanisms producing these impacts. This paper uses longitudinal data on cognitive and personality traits from an experimental evaluation of the influential Perry Preschool program to analyze the channels through which the program boosted both male and female participant outcomes. Experimentally induced changes in personality traits explain a sizable portion of adult treatment effects.

This paper examines the missing transmission mechanism in Friedman's and Schwartz's monetary explanation of the Great Depression. We review the challenge provided by the decline in nominal interest rates in the early 1930s, and show that the monetary explanation requires not just that there were expectations of deflation, but that they were caused by monetary contraction. Using a detailed analysis of Business Week magazine, we find evidence that monetary contraction and Federal Reserve policy contributed to expectations of deflation during the downturn. This suggests that monetary shocks may have depressed spending and output in part by raising real interest rates.

We find consistent value and momentum return premia across eight diverse markets and asset classes, and a strong common factor structure among their returns. Value and momentum returns correlate more strongly across asset classes than passive exposures to the asset classes, but value and momentum are negatively correlated with each other, both within and across asset classes. Our results indicate the presence of common global risks that we characterize with a three‐factor model. Global funding liquidity risk is a partial source of these patterns, which are identifiable only when examining value and momentum jointly across markets. Our findings present a challenge to existing behavioral, institutional, and rational asset pricing theories that largely focus on U.S. equities.