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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...

Was the First Public Health Campaign Successful?

By D. Mark Anderson, Kerwin Kofi Charles, Claudio Las Heras Olivares, and Daniel I. Rees

American Economic Journal: Applied Economics, April 2019

The US tuberculosis (TB) movement pioneered many of the strategies of modern public health campaigns. Using newly transcribed mortality data at the municipal level for the period 1900–1917, we explore the effectiveness of public health measures champion...

A Model of Safe Asset Determination

By Zhiguo He, Arvind Krishnamurthy, and Konstantin Milbradt

American Economic Review, April 2019

What makes an asset a "safe" asset? We study a model where two countries each issue sovereign bonds to satisfy investors' safe asset demands. The countries differ in the float of their bonds and the fundamental resources available to rollover debts. A sov...