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Choosing two Finalists and the Winner

  • Gent Bajraj

    ()

    (Centro de Investigación Económica (CIE), Instituto Tecnológico Autónomo de México (ITAM))

  • Levent Ülkü

    ()

    (Centro de Investigación Económica (CIE), Instituto Tecnológico Autónomo de México (ITAM))

We study a class of boundedly rational choice functions, namely two-stage choosers, which operate as follows. The decision maker uses two criteria in two stages to make a choice. First she shortlists the top-2 alternatives, i.e. two ?nalists, according to one criterion. Next, she chooses the winner in this binary shortlist using the second criterion. The criteria are linear orders ranking the alternatives, and they may or may not be explicitly welfare-relevant. For example, they may re?ect the distinct preferences of a short-run- and a long-run-self. Alternatively the ?rst criterion may be a list which the decision maker uses to browse alternatives, while the second gives ces. Using the concepts of choice reversers in a set, i.e., alternatives whose removal from a set affect choice, and hidden choice of a set,i.e., the alternative chosen when the choice is removed, we give four logically independent axioms on choice behavior which jointly characterize two-stage choosers.

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Paper provided by Centro de Investigacion Economica, ITAM in its series Working Papers with number 1305.

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Length: 37 pages
Date of creation: 2013
Date of revision:
Handle: RePEc:cie:wpaper:1305
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  1. Paola Manzini & Marco Mariotti, 2007. "Sequentially Rationalizable Choice," American Economic Review, American Economic Association, vol. 97(5), pages 1824-1839, December.
  2. Yusufcan Masatlioglu & Daisuke Nakajima & Erkut Ozbay, 2009. "Revealed Attention," NajEcon Working Paper Reviews 814577000000000409, www.najecon.org.
  3. Rohan Dutta & Sean Horan, 2013. "Inferring Rationales from Choice : Identification for Rational Shortlist Methods," Cahiers de recherche 09-2013, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
  4. Rubinstein, Ariel & Salant, Yuval, 2006. "A model of choice from lists," Theoretical Economics, Econometric Society, vol. 1(1), pages 3-17, March.
  5. Kfir Eliaz & Michael Richter & Ariel Rubinstein, 2011. "Choosing the two finalists," Economic Theory, Springer, vol. 46(2), pages 211-219, February.
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