Title
Brief Announcement: Computation of Fisher-Gale Equilibrium by Auction.
Abstract
We study the Fisher model of a competitive market from the algorithmic perspective. For that, the related convex optimization problem due to Gale and Eisenberg, [3], is used. The latter problem is known to yield a Fisher equilibrium under some structural assumptions on consumers' utilities, e.g. homogeneity of degree 1, homotheticity etc. We just assume the concavity of consumers' utility functions. For this case we suggest a novel concept of Fisher-Gale equilibrium by introducing consumers' utility prices. We develop a subgradient-type algorithm from Convex Analysis to compute a Fisher-Gale equilibrium by auction. In worst case, the number of price updates needed to achieve the s-tolerance is proportional to 1/epsilon(2).
Year
DOI
Venue
2015
10.1007/978-3-662-48433-3_29
ALGORITHMIC GAME THEORY, SAGT 2015
Keywords
Field
DocType
Fisher equilibrium,Computation of equilibrium,Price adjustment,Convex optimization,Subgradient methods,Auction
Mathematical economics,Mathematical optimization,Homogeneity (statistics),Subgradient method,Computer science,Perfect competition,Revenue equivalence,Convex optimization,Convex analysis,Computation
Conference
Volume
ISSN
Citations 
9347
0302-9743
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Yurii Nesterov11800168.77
V. Shikhman2506.95