Government agencies employ a variety of mechanisms for securing goods and services from the private sector. These include posting prices, reimbursing for costs, and soliciting competitive bids. Procurement of healthcare services offers several unique challenges. The supplier can influence the...

We introduce a counterfactual analysis of banks mergers, combining the pre-merger equilibrium setting with post-merger environmental characteristics, while accounting for endogenously propagated changes in market structure. Using this procedure we are able to estimate the effects on loan flows...

We present a model of competition between two advertising-financed media firms when consumers dislike advertising. We apply the model to analyze competition between Internet portals and find that equilibrium prices of advertising are higher the less differentiated the portals are perceived to...

We show that the number of merger proposals (frequency-based deterrence) is a more appropriate indicator of underlying changes in merger policy than the relative anti-competitiveness of merger proposals (composition-based deterrence). This has strong implications for the empirical analysis of...

Although the vast majority of Americans have private health insurance, researchers focus almost exclusively on public provision. Data on the private insurance sector is extremely difficult to obtain because health insurance contracts are complex, renegotiated annually, and not subject to...

This paper examines the strategic behavior of hospitals in one of their primary output markets: inpatient surgical procedures. High levels of learning-by-doing in surgical fields may act as a barrier to entry. I investigate whether incumbent hospitals facing prospective entry in a procedure...