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The Difficulty of Easy Projects

By Wioletta Dziuda, A. Arda Gitmez, and Mehdi Shadmehr

American Economic Review: Insights, September 2021

We consider binary private contributions to public good projects that succeed when the number of contributors exceeds a threshold. We show that for standard distributions of contribution costs, valuable threshold public good projects are more likely to su...

Shortfalls in the Long Run: Predictions about the Social Security Trust Fund

[Symposium: Social Security Reform]

By James R. Hines Jr. and Timothy Taylor

Journal of Economic Perspectives, Spring 2005

Many proposals for addressing the long-term issues of Social Security involve benefit reductions both in Disability Insurance and in Old Age and Survivors Insurance. However, the proposals in the papers that follow in this symposium do not alter the long-...

Inattention and Switching Costs as Sources of Inertia in Medicare Part D

By Florian Heiss, Daniel McFadden, Joachim Winter, Amelie Wuppermann, and Bo Zhou

American Economic Review, September 2021

Consumers' health plan choices are highly persistent even though optimal plans change over time. This paper separates two sources of inertia, inattention to plan choice and switching costs. We develop a panel data model with separate attention and choice ...

The Risk-Adjusted Carbon Price

By Ton S. van den Bremer and Frederick van der Ploeg

American Economic Review, September 2021

The social cost of carbon is the expected present value of damages from emitting one ton of carbon today. We use perturbation theory to derive an approximate tractable expression for this cost adjusted for climatic and economic risk. We allow for differen...