The welfare effects of pre-arrangements in matching markets

Mustafa Afacan

Economic Theory, 2013, vol. 53, issue 1, 139-151

Abstract: We study the welfare effects of different types of pre-arrangements (as identified in Sönmez in J Econ Theory 86:148–156, 1999 ) under the intern-optimal and hospital-optimal stable mechanisms in matching markets. First, both mechanisms are manipulable via Type-2 pre-arrangements. Regarding the welfare consequences, they might cause inefficient outcomes to arise, and the welfare effects on each side are ambiguous in the sense that there might be agents from each side, apart from pre-arranging ones, being better and worse off. Then, for Type-1 pre-arrangements, due to Kojima and Pathak (Am Econ Rev 99(3):608–627, 2009 ), we know that the intern-optimal stable mechanism is immune to this type of manipulations. In contrast to this result, the hospital-optimal stable mechanism turns out to be manipulable. More interestingly, they do not result in inefficient outcomes, and the welfare effects on each side are unambiguous: All hospitals (interns) are better (worse) off. Copyright Springer-Verlag 2013

Keywords: Unraveling; Pre-arrangement; Welfare; matching; Stability; C71; C78; J44 (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://hdl.handle.net/10.1007/s00199-012-0695-1 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:joecth:v:53:y:2013:i:1:p:139-151

Ordering information: This journal article can be ordered from
http://www.springer. ... eory/journal/199/PS2

DOI: 10.1007/s00199-012-0695-1

Access Statistics for this article

Economic Theory is currently edited by Nichoals Yanneils

More articles in Economic Theory from Springer, Society for the Advancement of Economic Theory (SAET) Contact information at EDIRC.
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().