Title
An experiment on learning with limited information: nonconvergence, experimentation cascades, and the advantage of being slow
Abstract
We present the results of an experiment on learning in a continuous-time low-information setting. For a dominance solvable version of a Cournot oligopoly with differentiated products, we find little evidence of convergence to the Nash equilibrium. In an asynchronous setting, characterized by players updating their strategies at different frequencies, play tends toward the Stackelberg outcome which favors the slower player. Convergence is significantly more robust for a “serial cost sharing” game, which satisfies a stronger solution concept of overwhelmed solvability. As the number of players grows, this improved convergence tends to diminish, seemingly driven by frequent and highly structured experimentation by players leading to a cascading effect in which experimentation by one player induces experimentation by others. These results have implications both for traditional oligopoly competition and for a wide variety of strategic situations arising on the Internet.
Year
DOI
Venue
2004
10.1016/S0899-8256(03)00183-0
Games and Economic Behavior
Keywords
Field
DocType
C7,C92,D83
Convergence (routing),Welfare economics,Asynchronous communication,Mathematical economics,Economics,Oligopoly,Microeconomics,Solution concept,Stackelberg competition,Nash equilibrium,Cournot competition,Product differentiation
Journal
Volume
Issue
ISSN
47
2
0899-8256
Citations 
PageRank 
References 
13
2.20
11
Authors
4
Name
Order
Citations
PageRank
Eric Friedman173995.62
Mikhael Shor2455.41
Scott Shenker3298922677.04
Barry Sopher4233.41