Co-Integration, Aggregate Consumption, and the Demand For Imports: A Structural Econometric Investigation
This paper uses a two-good version of Hall's (1978) representative agent, permanent income model to derive a structural import demand equation for nondurable consumer goods. Under the identification restriction that taste shocks are stationary, the model is shown to imply that log imports, log domestic goods, and the log relative price of imports are co-integrated. The data decisively reject the null hypothesis that imports, the relative price of imports, and the consumption of home goods are not co-integrated. We employ the non-linear least squares technique recently proposed by Phillips and Loretan (1990> to estimate the parameters of the import demand equation. The long-run price elasticity of import demand is estimated to be -0.95. The elasticity of import demand with respect to a permanent increase in real spending is estimated to be 2.20. These estimates fall within the range reported in studies by Helkie and Hooper (1986), Cline (1989), and the many studies surveyed by Goldstein and Kahn (1985) The message of this paper is that, at least for non-durable consumer goods, it is possible to interpret the traditional import demand equation as a co-integrating regression, and to interpret the price and expenditure elasticities estimated from such a trade equation as a co-integrating vector. Estimates of the co-integrating vector can be used to recover estimates of the utility parameters of the representative household. The similarity between the OLS and Phillips-Loretan estimates of the parameters suggests that the simultaneous equation bias is not large.
|Date of creation:||Aug 1991|
|Date of revision:|
|Publication status:||published as The American Economic Review, Vol. 84 (March 1994): 298-308.|
|Contact details of provider:|| Postal: |
Web page: http://www.nber.org
More information through EDIRC
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.:
- Robert J. Hodrick, 1987.
"Risk, Uncertainty and Exchange Rates,"
NBER Working Papers
2429, National Bureau of Economic Research, Inc.
- Shiells, C.R. & Stern, R.M. & Deardorff, A.V., 1988.
"Estimates Of The Elasticities Of Substitution Between Imports And Home Goods For The United States: Reply,"
235, Research Seminar in International Economics, University of Michigan.
- Clinton Shiells & Robert Stern & Alan Deardorff, 1989. "Estimates of the elasticities of substitution between imports and home goods for the United States: Reply," Review of World Economics (Weltwirtschaftliches Archiv), Springer, vol. 125(2), pages 371-374, June.
- Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-72, June.
- 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.
- Engle, Robert F. & Yoo, Byung Sam, 1987. "Forecasting and testing in co-integrated systems," Journal of Econometrics, Elsevier, vol. 35(1), pages 143-159, May.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:3812. See general information about how to correct material in RePEc.
If references are entirely missing, you can add them using this form.