We analyze the link between entry and Ramp;D spending distribution. We consider a monopolistic competitive market with free entry in which firms can invest in cost-cutting Ramp;D by paying a fixed cost first. For an intermediate level of fixed cost, there is a unique equilibrium in which the...

This paper uses a new data set on domestic child adoption to document the preferences of potential adoptive parents over born and unborn babies relinquished for adoption by their birth mothers. We show that adoptive parents exhibit significant biases in favor of girls and against...

This paper uses a new data set on child-adoption matching to estimate the preferences of potential adoptive parents over U.S.-born and unborn children relinquished for adoption. We identify significant preferences favoring girls and unborn children close to birth, and against African-American...

Auctioneers of patents are observed to allow joint bidding by coalitions of buyers. These auctions are distinguished by the good for sale being non-rivalrous, but still excludable, in consumption{that is, they auctions of club goods. This affects how coalitional bidding impacts auction...

We study a dynamic matching environment where individuals arrive sequentially. There is a tradeoff between waiting for a thicker market, allowing for higher-quality matches, and minimizing agents' waiting costs. The optimal mechanism cumulates a stock of incongruent pairs up to a threshold and...

In criminal organizations, diffusing information widely throughout the organization might lead to greater internal efficiency (in particular, since these organizations are self-sustaining, through enhancing trust). However, this may come at the cost of leaving the organization more vulnerable to...

We study the effects of network externalities on a unique matching protocol for faculty in a large U.S. professional school to offices in a new building. We collected institutional, web, and survey data on faculty`s attributes and choices. We first identify the different layers of the social...

In criminal organizations, diffusing information widely throughout the organization might lead to greater internal efficiency (in particular, since these organizations are self-sustaining, through enhancing trust). However, this may come at the cost of leaving the organization more vulnerable to...