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Assessing barriers to trade in the distribution and telecom sectors in emerging countries


We compute ad valorem equivalents (AVEs) for the regulation in three service sectors (i.e. fixed telecom, mobile telecom, distribution) applied by selected emerging countries. We start with qualitative information on the restrictions applied by each country in each sector on the basis of which we apply a multivariate statistical approach, to transform this qualitative data into a trade restrictiveness synthetic index (STRI). In a second stage we estimate the average impact of STRI on price cost margins, using a method avoiding the usual two-stage estimation. In the third stage, this impact is used to calculate the AVE of the STRI estimated in the first step. It is shown that the STRI has a significant effect on the price-cost margins of the individual firms only when controlled for Regional trade Agreements and exception to the MFN clause in the considered sector. Lastly, we compute tariff equivalents for the STRIs previously calculated using the estimated impact. More than half our AVEs are larger than 50% and one AVE out of six is above 100%.

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Article provided by Cambridge University Press in its journal World Trade Review.

Volume (Year): 12 (2013)
Issue (Month): 01 (January)
Pages: 57-78

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Handle: RePEc:cup:wotrrv:v:12:y:2013:i:01:p:57-78_00
Contact details of provider: Postal: Cambridge University Press, UPH, Shaftesbury Road, Cambridge CB2 8BS UK
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  1. Khalilzadeh-Shirazi, Javad, 1974. "Market Structure and Price-Cost Margins in United Kingdom Manufacturing Industries," The Review of Economics and Statistics, MIT Press, vol. 56(1), pages 67-76, February.
  2. Stephen S. Golub, 2009. "Openness to Foreign Direct Investment in Services: An International Comparative Analysis," The World Economy, Wiley Blackwell, vol. 32(8), pages 1245-1268, 08.
  3. Mohamed Ali Marouani & Laura Munro, 2009. "Assessing Barriers to Trade in Services in the MENA Region," OECD Trade Policy Papers 84, OECD Publishing.
  4. Jeffrey M. Wooldridge, 2003. "Cluster-Sample Methods in Applied Econometrics," American Economic Review, American Economic Association, vol. 93(2), pages 133-138, May.
  5. Novella Bottini & Mohamed Ali Marouani & Laura Munro, 2011. "Service Sector Restrictiveness and Economic Performance: An Estimation for the MENA Region," The World Economy, Wiley Blackwell, vol. 34(9), pages 1652-1678, 09.
  6. Henk Kox & Hildegunn Kyvik Nordås, 2007. "Services Trade and Domestic Regulation," OECD Trade Policy Papers 49, OECD Publishing.
  7. Cowling, Keith & Waterson, Michael, 1976. "Price-Cost Margins and Market Structure," Economica, London School of Economics and Political Science, vol. 43(171), pages 267-74, August.
  8. Nora Dihel & Ben Shepherd, 2007. "Modal Estimates of Services Barriers," OECD Trade Policy Papers 51, OECD Publishing.
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