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

When Do Input Prices Matter For Make-Or-Buy Decisions?

We investigate input pricing regimes that induce efficient make-or-buy decisions by entrants when there is constant returns in the production of the input(s) and simultaneous noncooperative price competition in downstream retail markets. A necessary and sufficient condition for efficient make-or-buy decisions is derived. This condition shows that input prices are relevant for make-or-buy decisions except under restrictive and often unverifiable assumptions on the demand structure, and that the least informationally-demanding way to ensure efficient make-or-buy decisions is to price inputs at marginal cost. The extent to which input prices can depart from marginal cost while still inducing efficient make-or-buy decisions depends on the relative efficiency of the incumbent and the demand displacement ratio, with significant departures possible even for modest efficiency differences when products are nearly homogeneous.

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: no

Paper provided by Department of Economics, University of Missouri in its series Working Papers with number 0701.

in new window

Length: 14 pgs.
Date of creation: 16 Jan 2007
Date of revision:
Publication status: Published in Journal of Regulatory Economics 2009
Handle: RePEc:umc:wpaper:0701
Contact details of provider: Postal: 118 Professional Building, Columbia, MO 65211
Phone: (573) 882-0063
Fax: (573) 882-2697
Web page:

More information through EDIRC

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. Bulow, Jeremy I & Geanakoplos, John D & Klemperer, Paul D, 1985. "Multimarket Oligopoly: Strategic Substitutes and Complements," Journal of Political Economy, University of Chicago Press, vol. 93(3), pages 488-511, June.
  2. J-J. Laffont & J. Tirole, 1994. "Access Pricing and Competition," Working papers 95-11, Massachusetts Institute of Technology (MIT), Department of Economics.
  3. Jean-Jacques Laffont & Jean Tirole, 2001. "Competition in Telecommunications," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262621509, June.
  4. Armstrong, Mark & Doyle, Chris & Vickers, John, 1996. "The Access Pricing Problem: A Synthesis," Journal of Industrial Economics, Wiley Blackwell, vol. 44(2), pages 131-50, June.
  5. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, June.
  6. Mark Armstrong, 2001. "Access Pricing, Bypass, and Universal Service," American Economic Review, American Economic Association, vol. 91(2), pages 297-301, May.
  7. Topkis Donald M., 1995. "Comparative Statics of the Firm," Journal of Economic Theory, Elsevier, vol. 67(2), pages 370-401, December.
  8. Philip Gayle & Dennis Weisman, 2007. "Are input prices irrelevant for make-or-buy decisions?," Journal of Regulatory Economics, Springer, vol. 32(2), pages 195-207, October.
  9. Blank, Larry & Kaserman, David L & Mayo, John W, 1998. "Dominant Firm Pricing with Competitive Entry and Regulation: The Case of IntraLATA Toll," Journal of Regulatory Economics, Springer, vol. 14(1), pages 35-53, July.
  10. Ingo Vogelsang, 2003. "Price Regulation of Access to Telecommunications Networks," Journal of Economic Literature, American Economic Association, vol. 41(3), pages 830-862, September.
  11. Vives, Xavier, 1984. "Duopoly information equilibrium: Cournot and bertrand," Journal of Economic Theory, Elsevier, vol. 34(1), pages 71-94, October.
  12. David E. M Sappington, 2005. "On the Irrelevance of Input Prices for Make-or-Buy Decisions," American Economic Review, American Economic Association, vol. 95(5), pages 1631-1638, December.
  13. Weisman, Dennis L, 1995. "Regulation and the Vertically Integrated Firm: The Case of RBOC Entry into Interlata Long Distance," Journal of Regulatory Economics, Springer, vol. 8(3), pages 249-66, November.
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:umc:wpaper:0701. 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: (Valerie Kulp)

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.