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Does It Matter if Your Health Insurer Is For Profit? Effects of Ownership on Premiums, Insurance Coverage, and Medical Spending

By Leemore Dafny

American Economic Journal: Economic Policy, February 2019

There is limited empirical evidence about the impact of for-profit health insurers on various outcomes. I study the effects of conversions to for-profit status by Blue Cross and Blue Shield (BCBS) affiliates in 11 states, spanning 28 geographic markets. I...

The Marginal Cost of Traffic Congestion and Road Pricing: Evidence from a Natural Experiment in Beijing

By Jun Yang, Avralt-Od Purevjav, and Shanjun Li

American Economic Journal: Economic Policy, February 2020

Severe traffic congestion is ubiquitous in large urban centers. This paper provides the first causal estimate of the relationship between traffic density and speed and optimal congestion charges using real-time fine-scale traffic data in Beijing. The iden...

Incomplete Disclosure: Evidence of Signaling and Countersignaling

By Benjamin B. Bederson, Ginger Zhe Jin, Phillip Leslie, Alexander J. Quinn, and Ben Zou

American Economic Journal: Microeconomics, February 2018

In 2011, Maricopa County adopted voluntary restaurant hygiene grade cards (A, B, C, D). Using inspection results between 2007 and 2013, we show that only 58 percent of the subsequent inspections led to online grade posting. Although the disclosure rate in...