Extrapolative Bubbles and Trading Volume
We propose an extrapolative model of bubbles to explain the sharp rise in prices and volume observed in historical financial bubbles. The model...
The Role of Sentiment in the Economy: 1920 to 1934
This paper investigates the role of sentiment in the US macro economy from 1920 to 1934. We use 2.4 million digitized articles from the Wall St...
Tracking Biased Weights: Asset Pricing Implications of Value-Weighted Indexing
We show theoretically and empirically that flows into index funds raise the prices of large stocks in the index disproportionately more than the...
Are Bigger Banks Better? Firm-Level Evidence from Germany
The effects of large banks on the real economy are theoretically ambiguous and politically controversial. I identify quasi-exogenous increases in bank...
Outsized Arbitrage
The paper studies incentives and trading decisions of an arbitrageur who can take concentrated bets in an illiquid market and who cares about interim...
Exploited by Complexity
Due to their complex features, structured financial products can hurt the average investor. Are certain investors particularly vulnerable? Using...
Resolving the Excessive Trading Puzzle: An Integrated Approach Based on Surveys and Transactions
The literature has provided over a dozen explanations for the widely documented excessive trading puzzle of retail investors trading so much that it...
Parimutuel betting markets: racetracks and lotteries revisited
This paper surveys the state of the art in research in racetrack and lottery markets. Market efficiency and the pricing of various wagers is studied...
Information Dispersion across Employees and Stock Returns
The Review of Financial Studies, 34(10), 4785–4831.
Market Fragmentation and Contagion
We study the transmission of liquidity shocks from one sector of the economy to other sectors in a general equilibrium model with multiple trading...
