TY - GEN

T1 - Price variation in a bipartite exchange network

AU - Gradwohl, Ronen

PY - 2008

Y1 - 2008

N2 - We analyze the variation of prices in a model of an exchange market introduced by Kakade et al. [11], in which buyers and sellers are represented by vertices of a bipartite graph and trade is allowed only between neighbors. In this model the graph is generated probabilistically, and each buyer is connected via preferential attachment to v sellers. We show that even though the tail of the degree distribution of the sellers gets heavier as v increases, the prices at equilibrium decrease exponentially with v. This strengthens the intuition that as the number of vendors available to buyers increases, the prices of goods decrease.

AB - We analyze the variation of prices in a model of an exchange market introduced by Kakade et al. [11], in which buyers and sellers are represented by vertices of a bipartite graph and trade is allowed only between neighbors. In this model the graph is generated probabilistically, and each buyer is connected via preferential attachment to v sellers. We show that even though the tail of the degree distribution of the sellers gets heavier as v increases, the prices at equilibrium decrease exponentially with v. This strengthens the intuition that as the number of vendors available to buyers increases, the prices of goods decrease.

UR - http://www.scopus.com/inward/record.url?scp=44449123581&partnerID=8YFLogxK

U2 - 10.1007/978-3-540-79309-0_11

DO - 10.1007/978-3-540-79309-0_11

M3 - ???researchoutput.researchoutputtypes.contributiontobookanthology.conference???

AN - SCOPUS:44449123581

SN - 3540793089

SN - 9783540793083

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 109

EP - 120

BT - Algorithmic Game Theory - First International Symposium, SAGT 2008, Proceedings

T2 - 1st International Symposium on Algorithmic Game Theory, SAGT 2008

Y2 - 30 April 2008 through 2 May 2008

ER -