Information technology (IT) can enhance firms' long-run performance but is also a risky investment, with high fixed costs and uncertain returns. Whether market events influence this tradeoff has received limited attention. We leverage the healthcare context to empirically examine hospitals' IT...

This paper examines the impact of reducing the administrative fragmentation of billing and payment, one commonly cited cause of inefficiency in US health care. We study a Medicare reform that consolidated billing processes across service types, using its staggered rollout and hospitals' prior...

This paper examines the tradeoffs of monitoring for wasteful public spending. By penalizing unnecessary spending, monitoring improves the quality of public expenditure and incentivizes firms to invest in compliance technology. I study a large Medicare program that monitored for unnecessary...

The impact of insurer competition on welfare, negotiated provider prices, and premiums in the U.S. private health care industry is theoretically ambiguous. Reduced competition may increase the premiums charged by insurers and their payments made to hospitals. However, it may also strengthen...

This paper reviews the literature devoted to studying markets for health care services and health insurance. There has been tremendous growth and progress in this field. A tremendous amount of new research has been done in this area over the last 10 years. In addition, there has been increasing...

I review the key issues that arise in financing health care delivery. I begin by documenting the key features of health care markets that make financing so central in this sector, such as the skewed and unpredictable nature of health care spending and market failures in health care delivery. I...

We study the role of physicians in driving geographic variation of US healthcare utilization. We estimate a model that separates variation in average utilization of Medicare beneficiaries due to physicians, non-physician supply side factors, and patient demand. The model is identified by...

In Latin America--the world's most unequal region--non-white rural populations disproportionately suffer from Chagas disease, a neglected tropical disease (NTD) that causes weeks of acute symptoms and can lead to chronic heart problems decades later. We demonstrate that Brazil's post-1983...

Technological advances and genomic sequencing opened the road to personalized medicine: specialized therapies targeted to patients displaying specific molecular alterations. For instance, targeted therapies are now available for 50% of lung cancer patients--with some alterations affecting less...