IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Estimating the Effects of Tax Reform in Differentiated Product Oligopolistic Markets

  • Fershtman, Chaim
  • Gandal, Neil
  • Markovich, Sarit

The incidence of taxation and the design of an optimal tax system have been extensively discussed in the public finance literature but mainly within a competitive market setting or within a homogenous good (Cournot type) oligopoly. In a differentiated product oligopoly, the effect of taxation can be more complex as the rate of taxation may affect not only the prices, but also the profile and quality of products that are sold in the market. In this paper, we examine the effects of changing tax regimes in a differentiated product oligopoly. In order to illustrate our approach, we employ data from one such market: the automobile market in Israel. The analysis involves two steps. We first estimate the Nash equilibrium in a differentiated product oligopoly and then use the results to simulate the new equilibrium under different tax regimes. Using the estimated parameters from the current market equilibrium, we examine the effect of changes in tax policy on tax incidence, market prices, sales (and the types of cars sold in the market), consumer surplus, firms' profits, as well as government revenues.

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.

File URL:
Download Restriction: CEPR Discussion Papers are free to download for our researchers, subscribers and members. If you fall into one of these categories but have trouble downloading our papers, please contact us at

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.

Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 2107.

in new window

Date of creation: Mar 1999
Date of revision:
Handle: RePEc:cpr:ceprdp:2107
Contact details of provider: Postal: Centre for Economic Policy Research, 77 Bastwick Street, London EC1V 3PZ.
Phone: 44 - 20 - 7183 8801
Fax: 44 - 20 - 7183 8820

Order Information: Email:

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.:

as in new window
  1. Cremer, Helmuth & Thisse, Jacques-François, 1993. "Commodity Taxation in a Differentiated Oligopoly," IDEI Working Papers 25, Institut d'Économie Industrielle (IDEI), Toulouse.
  2. Barnett, Paul G. & Keeler, Theodore E. & Hu, Teh-wei, 1995. "Oligopoly structure and the incidence of cigarette excise taxes," Journal of Public Economics, Elsevier, vol. 57(3), pages 457-470, July.
  3. Auerbach, Alan J., 1985. "The theory of excess burden and optimal taxation," Handbook of Public Economics, in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 1, chapter 2, pages 61-127 Elsevier.
  4. Gruenspecht, Howard K., 1988. "Export subsidies for differentiated products," Journal of International Economics, Elsevier, vol. 24(3-4), pages 331-344, May.
  5. Michael L. Katz & Harvey S. Rosen, 1983. "Tax Analysis in an Oligopoly Model," NBER Working Papers 1088, National Bureau of Economic Research, Inc.
  6. Kenkel, Donald S, 1996. "New Estimates of the Optimal Tax on Alcohol," Economic Inquiry, Western Economic Association International, vol. 34(2), pages 296-319, April.
  7. Myles, G. D., 1987. "Tax design in the presence of imperfect competition : An example," Journal of Public Economics, Elsevier, vol. 34(3), pages 367-378, December.
  8. Goldberg, Pinelopi Koujianou, 1995. "Product Differentiation and Oligopoly in International Markets: The Case of the U.S. Automobile Industry," Econometrica, Econometric Society, vol. 63(4), pages 891-951, July.
  9. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-90, July.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:cpr:ceprdp:2107. 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: ()

The email address of this maintainer does not seem to be valid anymore. Please ask to update the entry or send us the correct address

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.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.