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Adverse Selection Problems Without the Spence-Mirrlees Condition

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  • Araújo, Aloísio Pessoa de
  • Moreira, Humberto Ataíde

Abstract

This paper studies a class of one-dimensional screening problems where the agent's utility function does not satisfy the Spence-Mirrlees condition (SMC). The strength of the SMC for hidden information problems is to provide a full characterization of implementable contracts using only the local incentive compatibility (IC) constraints. These constraints are equivalent to the monotonicity of the decision variable with respect to the agent's unobservable one-dimensional parameter. When the SMC is violated the local IC constraints are no longer sufficient for implementability and additional (global) IC constraints have to be taken into account. In particular, implementable decisions may not be monotonic and discretely pooled types must have the same marginal utility of the decision (or equivalently, get the same marginal tariff). Moreover, at the optimal decision, the principal must preserve the same trade-off between rent extraction and allocative distortion measured in the agent's marginal rent unit. In a specific setting where non-monotone contracts may be optimal we fully characterize the solution.

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Bibliographic Info

Paper provided by FGV/EPGE Escola Brasileira de Economia e Finanças, Getulio Vargas Foundation (Brazil) in its series Economics Working Papers (Ensaios Economicos da EPGE) with number 389.

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Date of creation: 01 Jul 2000
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Handle: RePEc:fgv:epgewp:389

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Cited by:
  1. Boone, J. & Schottmuller, C., 2011. "Procurement with Specialized Firms," Discussion Paper 2011-054, Tilburg University, Tilburg Law and Economic Center.
  2. Yona Rubinstein & James J. Heckman, 2001. "The Importance of Noncognitive Skills: Lessons from the GED Testing Program," American Economic Review, American Economic Association, vol. 91(2), pages 145-149, May.
  3. Tsuchida, Marcos H. & Araújo, Aloísio Pessoa de & Moreira, Humberto Luiz Ataide, 2004. "The trade-off between incentives and endogenous risk," Economics Working Papers (Ensaios Economicos da EPGE) 523, FGV/EPGE Escola Brasileira de Economia e Finanças, Getulio Vargas Foundation (Brazil).
  4. Aloisio Araujo & Luciano I. de Castro & Humberto Moreira, 2006. "Non-Monotoniticies And The All-Pay Auction Tie-Breaking Rule," Economics Working Papers we065924, Universidad Carlos III, Departamento de Economía.
  5. Gottlieb, Daniel & Moreira, Humberto Ataíde & Araújo, Aloísio Pessoa de, 2004. "A model of mixed signals with applications to countersignaling an the GED," Economics Working Papers (Ensaios Economicos da EPGE) 553, FGV/EPGE Escola Brasileira de Economia e Finanças, Getulio Vargas Foundation (Brazil).
  6. Noldeke,G. & Samuelson,L., 2004. "Decomposable principal-agent problems," Working papers 14, Wisconsin Madison - Social Systems.
  7. Aloisio Araujo & Luciano I. de Castro Filho, 2004. "Pure Strategy Equilibria of Multidimensional and Non-Monotonic Auctions," Econometric Society 2004 Latin American Meetings 300, Econometric Society.
  8. Julien Prat & Carlos Alos-Ferrer, 2007. "Job Market Signaling and Employer Learning," 2007 Meeting Papers 648, Society for Economic Dynamics.

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