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

Dynamic Product Diversity

  • Caminal, Ramon

The goal of this paper is to study the frequency of new product introductions in monopoly markets where demand is subject to transitory saturation. We focus on those types of goods for which consumers purchase at most one unit of each variety, but repeat purchases in the same product category. The model considers infinitely-lived, forward-looking consumers and firms. We show that the share of potential surplus that a monopolist is able to appropriate increases with the frequency of introduction of new products and the intensity of transitory saturation. If the latter is sufficiently strong then the rate of introduction of new products is higher than socially desirable (excessive dynamic product diversity).

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 8990.

in new window

Date of creation: May 2012
Date of revision:
Handle: RePEc:cpr:ceprdp:8990
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. Jerome Adda & Russell Cooper, 1997. "Balladurette and Juppette: A Discrete Analysis of Scrapping Subsidies," Papers 0076, Boston University - Industry Studies Programme.
  2. Glenn Ellison & Drew Fudenberg, 1999. "The Neo-Luddite's Lament: Excessive Upgrades in the Software Industry," Harvard Institute of Economic Research Working Papers 1870, Harvard - Institute of Economic Research.
  3. Choi, Jay Pil, 1994. "Network Externality, Compatibility Choice, and Planned Obsolescence," Journal of Industrial Economics, Wiley Blackwell, vol. 42(2), pages 167-82, June.
  4. de Meza, David & Ungern-Sternberg, Thomas von, 1982. "Monopoly, product diversity and welfare," Regional Science and Urban Economics, Elsevier, vol. 12(3), pages 313-324, August.
  5. Yongmin Chen & Michael H. Riordan, 2007. "Price and Variety in the Spokes Model," Economic Journal, Royal Economic Society, vol. 117(522), pages 897-921, 07.
  6. Becker, Gary S, 1991. "A Note on Restaurant Pricing and Other Examples of Social Influences on Price," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 1109-16, October.
  7. Arthur Fishman & Rafael Rob, 2000. "Product Innovation by a Durable-Good Monpoly," RAND Journal of Economics, The RAND Corporation, vol. 31(2), pages 237-252, Summer.
  8. Eric W. Bond & Larry Samuelson, 1984. "Durable Good Monopolies with Rational Expectations and Replacement Sales," RAND Journal of Economics, The RAND Corporation, vol. 15(3), pages 336-345, Autumn.
  9. Liran Einav, 2007. "Seasonality in the U.S. motion picture industry," RAND Journal of Economics, RAND Corporation, vol. 38(1), pages 127-145, 03.
  10. Kenneth S. Corts, 2001. "The Strategic Effects of Vertical Market Structure: Common Agency and Divisionalization in the US Motion Picture Industry," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 10(4), pages 509-528, December.
  11. Armstrong, Mark, 2006. "Price discrimination," MPRA Paper 4693, University Library of Munich, Germany.
  12. Steven C. Salop, 1979. "Monopolistic Competition with Outside Goods," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 141-156, Spring.
  13. Waldman, Michael, 1993. "A New Perspective on Planned Obsolescence," The Quarterly Journal of Economics, MIT Press, vol. 108(1), pages 273-83, February.
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:8990. 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.