Ex Post Efficiency and Ex Post Welfare: Some Fundamental Considerations
Ross Starr (1973) demonstrates that a competitive equilibrium, while ex ante Pareto efficient, may not be ex post efficient. The authors contend that an implicit second-best issue requires that this assertion be substantively qualified. Specifically, the ex ante efficiency concept is second best, while its ex post counterpart is first best. They est ablish the equivalency of first-best ex post and ex ante concepts whe never the second-best ex ante efficiency conditions hold. The second best elements derive from the timing of information flows. Starr's theorem is shown to concern the social gains from improved information. Additional results deal with varying concepts of ex post welfare. Copyright 1988 by The London School of Economics and Political Science.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 55 (1988)
Issue (Month): 217 (February)
|Contact details of provider:|| Postal: |
Phone: +44 (020) 7405 7686
Web page: http://www.blackwellpublishing.com/journal.asp?ref=0013-0427
More information through EDIRC
|Order Information:||Web: http://www.blackwellpublishing.com/subs.asp?ref=0013-0427|
When requesting a correction, please mention this item's handle: RePEc:bla:econom:v:55:y:1988:i:217:p:63-79. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Wiley-Blackwell Digital Licensing)or (Christopher F. Baum)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.