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Import Demand in Heterogeneous Panel Setting

  • Harb, Nasri

To study the elasticities of import demand function, we build a heterogeneous panel with data of 40 counties and use panel unit root tests (Im, Pesaran and Shin, 1997) and panel cointegration tests (Pedroni, forthcoming). We test our model with two previously used activity variables: GDP and GDP minus Export for a performance comparison. To estimate our elasticities, we make use of two modified panel version of FMOLS and DOLS developed by Pedroni (1996, 2000, 2001). Our tests prove that GDP outperforms GDP minus Exports as an activity variable in the cointegration context. FMOLS and DOLS give close results when we do individual estimates. When we use between-dimension estimators, we get conflicting results. Hence, we split our sample into developed and developing groups and show that income elasticity in developing countries are not different than unity on average and are higher than in developed countries contradicting previous results in the literature.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 13622.

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Date of creation: 2005
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Publication status: Published in Applied Economics 20.37(2005): pp. 2407-2415
Handle: RePEc:pra:mprapa:13622
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  1. Pedroni, Peter, 2004. "Panel Cointegration: Asymptotic And Finite Sample Properties Of Pooled Time Series Tests With An Application To The Ppp Hypothesis," Econometric Theory, Cambridge University Press, vol. 20(03), pages 597-625, June.
  2. Peter Pedroni, 1999. "Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors," Department of Economics Working Papers 2000-02, Department of Economics, Williams College.
  3. Phillips, Peter C B & Loretan, Mico, 1991. "Estimating Long-run Economic Equilibria," Review of Economic Studies, Wiley Blackwell, vol. 58(3), pages 407-36, May.
  4. Dilip Dutta & Nasiruddin Ahmed, 2004. "An aggregate import demand function for India: a cointegration analysis," Applied Economics Letters, Taylor & Francis Journals, vol. 11(10), pages 607-613.
  5. Peter C. B. Phillips & Hyungsik R. Moon, 1999. "Linear Regression Limit Theory for Nonstationary Panel Data," Econometrica, Econometric Society, vol. 67(5), pages 1057-1112, September.
  6. Houthakker, Hendrik S & Magee, Stephen P, 1969. "Income and Price Elasticities in World Trade," The Review of Economics and Statistics, MIT Press, vol. 51(2), pages 111-25, May.
  7. Reinhart, Carmen, 1995. "Devaluation, Relative Prices, and International Trade: Evidence from Developing Countries," MPRA Paper 6974, University Library of Munich, Germany.
  8. Peter Pedroni, 2001. "Purchasing Power Parity Tests in Cointegrated Panels," Department of Economics Working Papers 2001-01, Department of Economics, Williams College.
  9. Peter Pedroni, 2000. "Fully Modified OLS for Heterogeneous Cointegrated Panels," Department of Economics Working Papers 2000-03, Department of Economics, Williams College.
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