An Applied General Equilibrium Model Of Moroccan Trade Liberalization Featuring External Economies
Since the 1920's economists have wrestled with the effects of external economies on trade liberalization. In this paper I show that under extreme conditions, externalities can reverse the gains from trade found in perfectly competitive trade models. However, the externalities needed to generate this result, even under the worst possible conditions (all expanding industries are subject to negative externalities, all contracting industries have positive externalities) are orders of magnitude larger than those estimated in Krizan (1997). This suggests that the presence of external economies of scale does not provide a credible argument for protectionism. On the other hand, the CGE model showed that external effects can increase the welfare gains from trade liberalization, but the combined effect is still small compared to other policy options. This finding contrasts sharply with many models featuring internal returns to scale that are able to generate large welfare benefits from trade liberalization.
|Date of creation:||Nov 1997|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: (301) 763-6460
Fax: (301) 763-5935
Web page: http://www.census.gov/ces
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.:
- Helpman, Elhanan, 1984. "Increasing returns, imperfect markets, and trade theory," Handbook of International Economics, in: R. W. Jones & P. B. Kenen (ed.), Handbook of International Economics, edition 1, volume 1, chapter 7, pages 325-365 Elsevier.
- Romer, Paul M, 1986.
"Increasing Returns and Long-run Growth,"
Journal of Political Economy,
University of Chicago Press, vol. 94(5), pages 1002-37, October.
- Rotemberg, Julio J. & Saloner, Garth, 2000.
"Competition and human capital accumulation: a theory of interregional specialization and trade,"
Regional Science and Urban Economics,
Elsevier, vol. 30(4), pages 373-404, July.
- Julio J. Rotemberg & Garth Saloner, 1990. "Competition and Human Capital Accumulation: A Theory of Interregional Specialization and Trade," NBER Working Papers 3228, National Bureau of Economic Research, Inc.
- Krugman, Paul, 1991. "History versus Expectations," The Quarterly Journal of Economics, MIT Press, vol. 106(2), pages 651-67, May.
- Rutherford, Thomas F. & Rutstrom, E.E. & Tarr, David, 1993. "Morocco's free trade agreement with the European community : a quantitative assessment," Policy Research Working Paper Series 1173, The World Bank.
- Venables, Anthony J, 1987. "Trade and Trade Policy with Differentiated Products: A Chamberlinian-Ricardian Model," Economic Journal, Royal Economic Society, vol. 97(387), pages 700-717, September.
- Elhanan Helpman & Paul Krugman, 1987. "Market Structure and Foreign Trade: Increasing Returns, Imperfect Competition, and the International Economy," MIT Press Books, The MIT Press, edition 1, volume 1, number 026258087x, June.
- Paul Krugman, 1992. "Geography and Trade," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262610868, June.
- James R. Markusen, 1990. "Micro-foundations of External Economies," Canadian Journal of Economics, Canadian Economics Association, vol. 23(3), pages 495-508, August.
- Ethier, Wilfred, 1979. "Internationally decreasing costs and world trade," Journal of International Economics, Elsevier, vol. 9(1), pages 1-24, February.
When requesting a correction, please mention this item's handle: RePEc:cen:wpaper:97-16. 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: (Fariha Kamal)
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.