Recent graduate James Boudreau, advised by Vicki Knoblauch, will publish the paper “Stratification and Growth in Agent-Based Matching Markets” in the Journal of Economic Behavior and Organization. The relationship between economic mobility and growth has long been a focus of economists’ attention, and James’ paper contributes to that literature by emphasizing the dynamic impacts of two-sided matching.

The model economy in the paper features heterogeneous agents that compete in an intergenerational match game for employment. Agents known as workers make productivity-enhancing investments, using their endowed wealth to add to pre-existing ability levels as they compete to match with other agents known as firms. A novel feature of the model is its use of the market’s matching process as an evolutionary fitness selection mechanism. Workers that are unable to find a match drop out of the population and thus do not contribute to current or future productive capacity. Those that do match are able to pass on their attributes, but in a manner that is not fully deterministic. Because of the stochastic element to inheritance, results are arrived at by way of agent-based simulations. Even with perfect information and substantial variety in both offspring and entrants, two-sided matching inevitably causes the population to evolve into stratified groups. Corrective measures are possible to improve mobility, but by altering the path of market evolution, a policy may have unintended impacts on growth and inequality.

Recent graduate Nicholas Shunda (IDEAS), advised by Vicki Knoblauch (IDEAS), will publish the paper “Auctions with a Buy Price: The Case of Reference-Dependent Preferences” in the journal Games and Economic Behavior. The paper contributes to a theoretical literature on rationales for the hybrid selling mechanism known as an auction with a buy price. In an auction with a buy price, a seller provides bidders with an option to forgo the auction and transact at a fixed price. The most well-known example of an auction with a buy price is eBay’s “Buy-It-Now” feature. The paper demonstrates that sellers can enhance revenues by adding a buy price to their auctions if bidders evaluate auction and purchase outcomes on the bases of surplus and comparison to a reference point depending upon the auction’s reserve and buy price. In contrast to alternative explanations for auctions with buy prices, such as risk aversion and impatience, which predict bidding behavior that is independent of the auction’s parameters, bidders with reference-dependent preferences submit bids that vary directly with the existence and size of the auction’s reserve and buy prices, behavior extensively documented in laboratory and field experimental auctions.