Welfare and efficiency in incomplete market economies with a single firm
In the quasilinear case, surplus maximization leads to constrained efficient Drèze equilibria. We investigate the question of whether surplus maximization can be useful beyond the quasilinear case. We use two different surplus concepts, the equivalent and the compensating surplus. The first one is a utilitarian social welfare function and the second one a measure of inefficiency. We show that social welfare maximization can be at odds with constrained efficiency. In particular, a unique Drèze equilibrium can maximize welfare although it is not minimally constrained efficient. The Drèze equilibrium can also minimize welfare although it entails no efficiency losses. We argue that the two surplus concepts should be used together and that they can help to distinguish between different Drèze equilibria on welfare and efficiency grounds.
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.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Deschamps, Robert & Gevers, Louis, 1978. "Leximin and utilitarian rules: A joint characterization," Journal of Economic Theory, Elsevier, vol. 17(2), pages 143-163, April.
- Egbert Dierker & Hildegard Dierker, 2010. "Drèze equilibria and welfare maxima," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 45(1), pages 55-63, October.
- Egbert Dierker & Hildegard Dierker & Birgit Grodal, 2005.
"Are incomplete markets able to achieve minimal efficiency?,"
Springer;Society for the Advancement of Economic Theory (SAET), vol. 25(1), pages 75-87, 01.
- Egbert Dierker & Hildegard Dierker & Birgit Grodal, 2002. "Are Incomlete Markets Able to Achieve Minimal Efficiency?," Vienna Economics Papers 0212, University of Vienna, Department of Economics.
- Egbert Dierker & Hildegard Dierker & Birgit Grodal, 2002. "Are Incomplete Markets Able to Achieve Minimal Efficiency?," Discussion Papers 03-09, University of Copenhagen. Department of Economics.
- Eric Maskin, 1978. "A Theorem on Utilitarianism," Review of Economic Studies, Oxford University Press, vol. 45(1), pages 93-96.
When requesting a correction, please mention this item's handle: RePEc:eee:mateco:v:46:y:2010:i:5:p:652-665. 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: (Shamier, Wendy)
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.