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On the Demise of the Long Run

By Roy B. Helfgott

Journal of Economic Perspectives, Fall 1989

John Maynard Keynes observed that, "In the long run we are all dead," but in terms of economic analysis, the long run also may be dead. The culprit is new technology that is wiping out many of the distinctions between the long and short run. As pointed ou...

Strategic Tournaments

By Ayala Arad and Ariel Rubinstein

American Economic Journal: Microeconomics, November 2013

A strategic (round-robin) tournament is a simultaneous n-player game built on top of a symmetric two-player game G. Each player chooses one action in G and is matched to play G against all other players. The winner of the tournament is the player who a...

Strategic Interaction and Networks

By Yann Bramoullé, Rachel Kranton, and Martin D'Amours

American Economic Review, March 2014

Geography and social links shape economic interactions. In industries, schools, and markets, the entire network determines outcomes. This paper analyzes a large class of games and obtains a striking result. Equilibria depend on a single network measure:...

Vendettas

By Friedel Bolle, Jonathan H. W. Tan, and Daniel John Zizzo

American Economic Journal: Microeconomics, May 2014

Vendettas occur in many real-world settings where rivals compete for a prize, e.g., winning a competitive promotion or retaining a job, by engaging in aggressive, retaliatory behavior. We present a benchmark experiment where two players have an initial ...

Resisting Moral Wiggle Room: How Robust Is Reciprocal Behavior?

By Joël J. van der Weele, Julija Kulisa, Michael Kosfeld, and Guido Friebel

American Economic Journal: Microeconomics, August 2014

We provide the second mover in a trust game and a moonlighting game with an excuse for not reciprocating. While this type of manipulation has been shown to strongly reduce giving in the dictator game, we find that the availability of the excuse has no eff...