The Puzzling Income Elasticity of US Imports
Existing estimates of the income elasticity suggest that, in the absence of price increases, US imports will eventually exceed US income. That the United States will change from being a largely self-sufficient economy to one that cannot cover its imports has received a great deal of attention in developing models for imports: allowance for simultaneity in the import market, recognition of dynamic adjustments and optimization, disaggregation of imports across product and countries, removal of measurement errors in official data, and differentiation between cyclical and secular forces. I show that previous methods to resolve the puzzle, though insightful, are not successful: three decades of methodological improvements in modeling and estimation yield estimated income elasticities for imports much greater than one. I resolve this puzzling estimate by removing the representative-agent assumption and addressing the substitution bias embodied in official import prices stemming from their exclusion of new products. I follow Feenstra to address the substitution bias induced by the omission of new-products' prices. To remove the representative-agent assumption, I start with an individual's demand for imports depending on income and relative prices. Then, consistent aggregation of the micro relations yields a macro equation with income, relative prices, and the variances of the distributions of imports, income, and relative prices. These variances embody individuals' heterogeneity which I model using the share of foreign-born individuals in the United States. For parameter estimation, I use the cointegration method of Johansen (1988). Recognizing either the substitution biases in import prices or the heterogeneity induced by immigration point to unitary income elasticities. Excluding these factors and using the conventional model yields estimated income elasticities much greater than one.
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- Robert J. Barro & Paul Romer, 1993.
National Bureau of Economic Research, Inc, number barr93-1.
- Jaime Marquez, 1995. "A century of trade elasticities for Canada, Japan, and the United States," International Finance Discussion Papers 531, Board of Governors of the Federal Reserve System (U.S.).
- Lau, Lawrence J., 1986. "Functional forms in econometric model building," Handbook of Econometrics, in: Z. Griliches† & M. D. Intriligator (ed.), Handbook of Econometrics, edition 1, volume 3, chapter 26, pages 1515-1566 Elsevier.
- Burgess, David F., 1974. "Production theory and the derived demand for imports," Journal of International Economics, Elsevier, vol. 4(2), pages 103-117, May.
- Abdelhak Senhadji, 1998. "Time-Series Estimation of Structural Import Demand Equations: A Cross-Country Analysis," IMF Staff Papers, Palgrave Macmillan, vol. 45(2), pages 236-268, June.
- Haynes, Stephen E & Stone, Joe A, 1983. "Secular and Cyclical Responses of U.S. Trade to Income: An Evaluation of Traditional Models," The Review of Economics and Statistics, MIT Press, vol. 65(1), pages 87-95, February.
- Khan, Mohsin S & Ross, Knud Z, 1975. "Cyclical and Secular Income Elasticities of the Demand for Imports," The Review of Economics and Statistics, MIT Press, vol. 57(3), pages 357-61, August.
- Murray, Tracy & Ginman, Peter J, 1976. "An Empirical Examination of the Traditional Aggregate Import Demand Model," The Review of Economics and Statistics, MIT Press, vol. 58(1), pages 75-80, February.
- 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.
- Johansen, Soren, 1988. "Statistical analysis of cointegration vectors," Journal of Economic Dynamics and Control, Elsevier, vol. 12(2-3), pages 231-254.
- Goldstein, Morris & Khan, Mohsin S., 1985. "Income and price effects in foreign trade," Handbook of International Economics, in: R. W. Jones & P. B. Kenen (ed.), Handbook of International Economics, edition 1, volume 2, chapter 20, pages 1041-1105 Elsevier.
- Keith Head & John Ries, 1998. "Immigration and Trade Creation: Econometric Evidence from Canada," Canadian Journal of Economics, Canadian Economics Association, vol. 31(1), pages 47-62, February.
- Joseph E. Gagnon, 1989. "A forward-looking multicountry model: MX3," International Finance Discussion Papers 359, Board of Governors of the Federal Reserve System (U.S.).
- Zietz, Joachim & Pemberton, Donald K., 1993. "Parameter instability in aggregate US import demand functions," Journal of International Money and Finance, Elsevier, vol. 12(6), pages 654-667, December.
- Borjas, G.J. & Freeman, R.B. & Katz, L.F., 1991.
"On The Labor Market Effects Of Immigration And Trade,"
Harvard Institute of Economic Research Working Papers
1556, Harvard - Institute of Economic Research.
- George J. Borjas & Richard B. Freeman & Lawrence F. Katz, 1992. "On the Labor Market Effects of Immigration and Trade," NBER Chapters, in: Immigration and the Workforce: Economic Consequences for the United States and Source Areas, pages 213-244 National Bureau of Economic Research, Inc.
- George J. Borjas & Richard B. Freeman & Lawrence F. Katz, 1991. "On the Labor Market Effects of Immigration and Trade," NBER Working Papers 3761, National Bureau of Economic Research, Inc.
- Johansen, Soren & Juselius, Katarina, 1990. "Maximum Likelihood Estimation and Inference on Cointegration--With Applications to the Demand for Money," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 52(2), pages 169-210, May.
- Flint Brayton & Eileen Mauskopf & David Reifschneider & Peter Tinsley & John Williams, 1997. "The role of expectations in the FRB/US macroeconomic model," Federal Reserve Bulletin, Board of Governors of the Federal Reserve System (U.S.), issue Apr, pages 227-245.
- Andrew Levin & John Rogers & Ralph Tryon, 1997. "Evaluating international economic policy with the Federal Reserve's global model," Federal Reserve Bulletin, Board of Governors of the Federal Reserve System (U.S.), issue Oct, pages 797-817.
- Marquez, Jaime, 1999. "Long-Period Trade Elasticities for Canada, Japan, and the United States," Review of International Economics, Wiley Blackwell, vol. 7(1), pages 102-16, February.
- Stern, Robert M & Baum, Christopher F & Greene, Mark N, 1979. "Evidence on Structural Change in the Demand for Aggregate U.S. Imports and Exports," Journal of Political Economy, University of Chicago Press, vol. 87(1), pages 179-92, February.
- Sawyer, W. Charles & Sprinkle, Richard L., 1997. "The Demand for Imports and Exports in Japan: A Survey," Journal of the Japanese and International Economies, Elsevier, vol. 11(2), pages 247-259, June.
- Gould, David M, 1994. "Immigrant Links to the Home Country: Empirical Implications for U.S. Bilateral Trade Flows," The Review of Economics and Statistics, MIT Press, vol. 76(2), pages 302-16, May.
- Ulrich R. Kohli, 1978. "A Gross National Product Function and the Derived Demand for Imports and Supply of Exports," Canadian Journal of Economics, Canadian Economics Association, vol. 11(2), pages 167-82, May.
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