Abstract
Recent results showed PPAD-completeness of the problem of computing an equilibrium for Fisher’s market model under additively separable, piecewise-linear, concave utilities. We show that introducing perfect price discrimination in this model renders its equilibrium polynomial time computable. Moreover, its set of equilibria are captured by a convex program that generalizes the classical Eisenberg-Gale program, and always admits a rational solution.
We also introduce production into our model; our goal is to carve out as big a piece of the general production model as possible while still maintaining the property that a single (rational) convex program captures its equilibria, i.e., the convex program must optimize individually for each buyer and each firm.
Research supported by NSF Grants CCF-0728640 and CCF-0914732, ONR Grant N000140910755, and a Google Research Grant.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Anderson, S.P., de Palma, A.: Spatial price discrimination with heterogeneous products. The Review of Economic Studies 55(4), 573–592 (1988)
Arrow, K., Debreu, G.: Existence of an equilibrium for a competitive economy. Econometrica 22, 265–290 (1954)
Bhaskar, V., To, T.: Is perfect price discrimination really efficient? An analysis of free entry. The RAND Journal of Economics 35(4), 762–776 (2004)
Chen, X., Dai, D., Du, Y., Teng, S.-H.: Settling the complexity of arrow-debreu equilibria in markets with additively separable utilities. In: FOCS (2009)
Chen, X., Teng, S.-H.: Spending is not easier than trading: on the computational equivalence of Fisher and Arrow-Debreu equilibria. Journal of the ACMÂ 56(3) (2009)
Codenotti, B., Varadarajan, K.: Efficient computation of equilibrium prices for markets with Leontief utilities. In: DÃaz, J., Karhumäki, J., Lepistö, A., Sannella, D. (eds.) ICALP 2004. LNCS, vol. 3142, pp. 371–382. Springer, Heidelberg (2004)
Devanur, N., Papadimitriou, C.H., Saberi, A., Vazirani, V.V.: Market equilibrium via a primal-dual-type algorithm. JACMÂ 55(5) (2008)
Edlin, A., Epelbaum, M., Heller, W.: Surplus maximization and price discrimination in general equilibrium: Part I. Technical Report 9405, Centro de Investigacion Economica, ITAM (1994)
Heller, M., Edlin, W.P., Epelbaum, A.S.: Is perfect price discrimination really efficient? Welfare and existence in general equilibrium. Econometrica 66(4), 897–922 (1998)
Grotschel, M., Lovasz, L., Schrijver, A.: Geometric Algorithms and Combinatorial Optimization. Springer, Heidelberg (1988)
Jain, K.: A polynomial time algorithm for computing the Arrow-Debreu market equilibrium for linear utilities. In: FOCS (2004)
Jain, K., Vazirani, V.V., Ye, Y.: Market equilibrium for homothetic, quasi-concave utilities and economies of scale in production. In: SODA (2005)
Liu, Q., Serfes, K.: Imperfect price discrimination, market structure, and efficiency. Canadian Journal of Economics 38(4), 1191–1203 (2005)
Varian, H.: Differential pricing and efficiency. First Monday 1(2) (1996)
Varian, H.R.: Price discrimination and social welfare. American Economic Review 75(4), 870–875 (1985)
Vazirani, V.V.: Nash bargaining via flexible budget markets (submitted 2009)
Vazirani, V.V.: 2-player Nash and nonsymmetric bargaining via market equilibria. In: SAGT (2010)
Vazirani, V.V.: Spending constraint utilities, with applications to the Adwords market. Mathematics of Operations Research 35(2) (2010)
Vazirani, V.V., Yannakakis, M.: Market equilibria under separable, piecewise-linear, concave utilities. In: Proceedings of The First Symposium on Innovations in Computer Science (2010)
Norman, G., MacLeod, W.B., Thisse, J.-F.: Price discrimination and equilibrium in monopolistic competition. International Journal of Industrial Organization 6(4), 429–446 (1988)
Ye, Y.: Exchange market equilibria with Leontief’s utility: Freedom of pricing leads to rationality. Theoretical Computer Science 378, 134–142 (2007)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Goel, G., Vazirani, V. (2010). A Perfect Price Discrimination Market Model with Production, and a (Rational) Convex Program for It. In: Kontogiannis, S., Koutsoupias, E., Spirakis, P.G. (eds) Algorithmic Game Theory. SAGT 2010. Lecture Notes in Computer Science, vol 6386. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16170-4_17
Download citation
DOI: https://doi.org/10.1007/978-3-642-16170-4_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-16169-8
Online ISBN: 978-3-642-16170-4
eBook Packages: Computer ScienceComputer Science (R0)