Aversion to price risk and the afternoon effect
Mezzetti, Claudio (2008) Aversion to price risk and the afternoon effect. Working Paper. University of Warwick, Department of Economics, Coventry.
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Many empirical studies of auctions show that prices of identical goods sold sequentially follow a declining path. Declining prices have been viewed as an anomaly, because the theoretical models of auctions predict that the price sequence should either be a martingale (with independent signals and no informational externalities), or a submartingale (with affiliated signals). This paper shows that declining prices, the afternoon effect, arise naturally when bidders are averse to price risk. A bidder is averse to price risk if he prefers to win an object at a certain price, rather than at a random price with the same expected value. When bidders have independent signals and there are no informational externalities, only the effect of aversion to price risk is present and the price sequence is a supermartingale. When there are informational externalities, even with independent signals, there is a countervailing, informational effect, which pushes prices to raise along the path of a sequential auction. This may help explaining the more complex price paths we observe in some auctions.
|Item Type:||Working or Discussion Paper (Working Paper)|
|Subjects:||H Social Sciences > HB Economic Theory|
|Divisions:||Faculty of Social Sciences > Economics|
|Library of Congress Subject Headings (LCSH):||Risk assessment, Price regulation, Auctions, Information asymmetry, Martingales (Mathematics)|
|Series Name:||Warwick economic research papers|
|Publisher:||University of Warwick, Department of Economics|
|Place of Publication:||Coventry|
|Date:||19 May 2008|
|Number of Pages:||37|
|Status:||Not Peer Reviewed|
|Access rights to Published version:||Open Access|
|References:|| Ashenfelter, O. (1989): How Auctions Works for Wine and Art. Journal of Economic Perspectives, 3, 23-36.  Ashenfelter, O. and D. Genesove (1992): Testing for Price Anomalies in Real-Estate Auction. Amer- ican Economic Review, 82, 501-505.  Ashenfelter, O. and K. Graddy (2003): Auctions and the Price of Art. Journal of Economic Literature, 41, 763-786.  Beggs, A. and K. Graddy, (1997): Declining Values and the Afternoon E¤ect: Evidence from Art Auctions. RAND Journal of Economics, 28, 544-565.  van den Berg, G., J. van Ours and M. Pradhan (2001): The Declining Price Anomaly in Dutch Rose Auctions. American Economic Review, 91, 1055-1062.  Bernhardt, D. and D. Scoones (1994): A Note on Sequential Auctions. American Economic Review, 84, 653-657.  Black, J. and D. de Meza (1992): Systematic Price Di¤erences between Successive Auctions Are No Anomaly. Journal of Economics and Management Strategy, 1, 607-628.  Buccola, S. (1982): Price Trends at Livestock Auctions. American Journal of Agricultural Economics, 64, 63-69.  Burns, P. (1985): Experience and Decision Making: A Comparison of Students and Businessmen in a Simulated Progressive Auction. In V. Smith (ed.), Research in Experimental Economics: A Research Annual, vol. 3, Greenwich, Connecticut: JAI.  Chanel, O., L.A. Gérard-Varet and S. Vincent (1996): Auction Theory and Practice: Evidence from the Market for Jewelry. In V. Ginsburgh and P.M. Menger (eds), Economics of the Arts: Selected Essays. Amsterdam: Elsevier.  Dasgupta P. and E. Maskin (2000): E¢ cient Auctions. Quarterly Journal of Economics, 95, 341-388.  Deltas, G. and G. Kosmopolou (2004): Bidding in Sequential Auctions: �Catalogue�vs. �Order-of-Sale� E¤ects. Economic Journal, 114, 28-54.  Engelbrecht-Wiggans, R. (1994): Sequential Auctions of Stochastically Equivalent Objects. Economics Letters, 44, 87-90.  Feng, J., and K. Chatterjee (2005): Simultaneous vs. Sequential Auctions: Intensity of Competition and Uncertainty. Working Paper, Penn State University, http://econ.la.psu.edu/papers/auction-OR- 5-5-051.pdf.  Gale, I. and D. Hausch (1994): Bottom-Fishing and Declining Prices in Sequential Auctions. Games and Economic Behavior, 7, 318-331.  Gale, I. and M. Stegeman (2001): Sequential Auctions of Endogenously Valued Objects. Games and Economic Behavior, 36, 74-103.  Gandal, N. (1997): Sequential Auctions of Interdependent Objects: Israeli Cable Television Licenses. Journal of Industrial Economics, 45, 227-244.  Ginsburgh, V. (1998): Absentee Bidders and the Declining Price Anomaly in Wine Auctions. Journal of Political Economy, 106, 1302-1319.  Ginsburgh, V. and J. Van Ours (2007): How to Organize a Sequential Auction. Results of a Natural Experiment by Christie�s. Oxford Economic Papers, 59 (2007), 1-15.  Jeitschko, T. (1999): Equilibrium Price Paths in Sequential Auctions with Stochastic Supply. Eco- nomics Letters, 64, 67-72.  Jeitschko, T. and E. Wolfstetter (1998): Scale Economies and the Dynamics of Recurring Auctions. Economic Inquiry, 40, 403�414.  Jones, C., F. Menezes and F. Vella (2004): Auction Price Anomalies: Evidence from Wool Auctions in Australia. Economic Record, 80 (250), 271-288.  Katzman, B. (1999): A Two Stage Sequential Auction with Multi-Unit Demands. Journal of Economic Theory, 86, 77-99.  Keser, C. and M. Olson (1996): Experimental Examination of the Declining Price Anomaly. In V. Ginsburgh and P.M. Menger (eds), Economics of the Arts: Selected Essays. Amsterdam: Elsevier.  Krishna, V. (2002): Auction Theory, San Diego, California: Academic Press.  Ljungqvist, L. and T. Sargent (2000), Recursive Macroeconomic Theory, Cambridge, Massachusetts: MIT Press.  Lusht, K. (1994): Order and Price in a Sequential Auction. Journal of Real Estate Finance and Economics, 8, 259-266.  Maskin, E. and J. Riley (1984): Optimal Auctions with Risk Averse Buyers. Econometrica, 52, 1473- 1518.  Matthews, S. (1983): Selling to Risk Averse Buyers with Unobservable Tastes. Journal of Economic Theory, 30, 370-400.  McAfee, P. and D. Vincent (1993): The Declining Price Anomaly. Journal of Economic Theory, 60, 191-212.  Mezzetti, C., A. Pekeµc, and I. Tsetlin (2008): Sequential vs. Single-Round Uniform-Price Auctions. Games and Economic Behavior, in press, doi:10.1016/j.geb.2007.05.002.  Milgrom, P. (2004): Putting Auction Theory to Work. Cambridge, UK: Cambridge University Press.  Milgrom, P. and R. Weber (1982): A Theory of Auctions and Competitive Bidding, II. Mimeo. Stanford University and Northwestern University. Published with new foreword in P. Klemperer (ed.) (2000): The Economic Theory of Auctions, Vol. 1, Cheltenham, UK: Edward Edgar.  Pesando J. and P. Shum (1996): Price Anomalies at Auctions: Evidence from the Market for Modern Prints. In V. Ginsburgh and P.M. Menger (eds), Economics of the Arts: Selected Essays. Amsterdam: Elsevier.  Thiel, S, and G. Petry (1995): Bidding Behaviour in Second-Price Auctions: Rare Stamp Sales, 1923-1937. Applied Economics, 27(1), 11-16.  Weber, R. (1983): Multi-Object Auctions. In: Engelbrecht-Wiggans, R., Shubil, M. and Stark, R.M. (eds), Auctions, Bidding and Contracting: Uses and Theory. New York University Press, New York, 165�94.|
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