We estimate the health costs of supply-side barriers to accessing medical care. The setting is Colombia, where citizens have a constitutional right to health care, but insurance companies that manage delivery impose restrictions on access. We use administrative data on judicial claims for health...

The debate around public versus private health care often turns on cost - that is, on how to reduce costs, and particularly government expenditures, when it comes to health care. This paper examines the theoretical and empirical relationship between health costs and health outcomes in the...

Over the last decade, the U.S. Medicare program has added new billing codes to enhance the financial rewards for Chronic Care Management and Transitional Care Management. We show that the take-up of these new billing codes is gradual and exhibits substantial variations across markets and...

Innovation is part idea generation and part development. We build a model of "innovating-by-doing," whereby ideas come to practitioners. Successful innovation requires that practitioners' ideas be developed through costly effort. Our model nests existing theories of laboratory research and...

We analyze wartime prosthetic device patents to investigate how demand and procurement policy can shape medical innovation. We use machine learning tools to develop new data describing the aspects of medical and mechanical innovations that are emphasized in patent documents. Our analysis of...