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Mean field games

Open access
Lasry, Jean-Michel, Lions, Pierre-Louis·2007·Japanese Journal of Mathematics

Abstract

We survey here some recent studies concerning what we call mean-field models by analogy with Statistical Mechanics and Physics. More precisely, we present three examples of our mean-field approach to modelling in Economics and Finance (or other related subjects...). Roughly speaking, we are concerned with situations that involve a very large number of “rational players” with a limited information (or visibility) on the “game”. Each player chooses his optimal strategy in view of the global (or macroscopic) informations that are available to him and that result from the actions of all players. In the three examples we mention here, we derive a mean-field problem which consists in nonlinear differential equations. These equations are of a new type and our main goal here is to study them and establish their links with various fields of Analysis. We show in particular that these nonlinear problems are essentially well-posed problems i.e., have unique solutions. In addition, we give various limiting cases, examples and possible extensions. And we mention many open problems.

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Metadata

Authors
Lasry, J.-M., & Lions, P.-L.
Venue
Japanese Journal of Mathematics
Published
2007-03
Volume
2
Issue
1
Pages
229-260
ISSN
  • 0075-3432 (ISSN-L)
  • 0289-2316
  • 1861-3624
OpenAlex
W2038686546
Cited by
2,635
References
10
FWCI
33.07
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Mean field games. https://app.cochat.ai/papers/10.1007/s11537-007-0657-8
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Lasry, J.-M., & Lions, P.-L. (2007). Mean field games. Japanese Journal of Mathematics. https://doi.org/10.1007/s11537-007-0657-8

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