Excessive leverage (indebtedness) in banking endangers the public and distorts the economy. Yet current and proposed regulations only tweak previous regulations that failed to provide financial stability. This paper discusses the forces that have led to this situation, some of which appear to be...

We estimate the effect of consumer search on the price of the purchased product in a physical store environment. We implement the analysis using a unique data set obtained from radio frequency identification tags, which are attached to supermarket shopping carts. This technology allows us to...

In this overview article, we summarize recent research in progress that examines the potential and limitations of non-violent civil disobedience through the lens of the evolution of an iconic success: India's struggle for democratic self-rule. We present a theoretical framework that highlights...

We examine whether venture capitalists contribute to the innovation and success of their portfolio companies, or merely select companies that are already poised to innovate and succeed. To do so, we exploit exogenous reductions in monitoring costs stemming from the introduction of new airline...

This study finds that more conservative earnings have lower information content in that higher conditional conservatism decreases the speed with which equity investor disagreement and uncertainty resolve at earnings announcements. We find that a firm-year measure of conditional conservatism we...

In a multi-armed bandit (MAB) problem a gambler needs to choose at each round of play one of K arms, each characterized by an unknown reward distribution. Reward realizations are only observed when an arm is selected, and the gambler's objective is to maximize his cumulative expected earnings...

Using the dollar-value a mutual fund manager adds as the measure of skill, we find that not only does skill exist (the average mutual fund manager adds about $2 million per year), but this skill is persistent, as far out as 10 years. We further document that investors recognize this skill and...

The debate on banking regulation has been dominated by flawed and misleading claims. The title of our book The Bankers New Clothes: What's Wrong with Banking and What to Do about It (Princeton University Press, 2013, see bankersnewclothes.com) refers to flawed claims about banking and banking...

Using detailed edit-level data over eight years across a large number of articles on Wikipedia, we find evidence for a positive spillover effect in editing activity. Cumulative past contributions, embodied by the current article length, lead to significantly more editing activity, while...