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Semiparametric Estimation of Index Coefficients


  • Powell, James L
  • Stock, James H
  • Stoker, Thomas M


This paper gives a solution to the problem of estimating coefficients of index models, through the estimation of the density-weighted average derivative of a general regression function. A normalized version of the density-weighted average derivative can be estimated by certain linear instrumental variables coefficients. The estimators, based on sample analogies of the product moment representation of the average derivative, are constructed using nonparametric kernel estimators of the density of the regressors. Consistent estimators of the asymptotic variance-covariance matrices of the estimators are given, and a limited Monte Carlo simulation is used to study the practical performance of the procedures. Copyright 1989 by The Econometric Society.

Suggested Citation

  • Powell, James L & Stock, James H & Stoker, Thomas M, 1989. "Semiparametric Estimation of Index Coefficients," Econometrica, Econometric Society, vol. 57(6), pages 1403-1430, November.
  • Handle: RePEc:ecm:emetrp:v:57:y:1989:i:6:p:1403-30

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    References listed on IDEAS

    1. Arlene Holen, 1977. "Effects of Unemployment Insurance Entitlement on Duration and Job Search Outcome," ILR Review, Cornell University, ILR School, vol. 30(4), pages 445-450, July.
    2. Lippman, Steven A & McCall, John J, 1976. "The Economics of Job Search: A Survey," Economic Inquiry, Western Economic Association International, vol. 14(3), pages 347-368, September.
    3. Finis Welch, 1977. "What Have We Learned from Empirical Studies of Unemployment Insurance?," ILR Review, Cornell University, ILR School, vol. 30(4), pages 451-461, July.
    4. Moffitt, Robert & Nicholson, Walter, 1982. "The Effect of Unemployment Insurance on Unemployment: The Case of Federal Supplemental Benefits," The Review of Economics and Statistics, MIT Press, vol. 64(1), pages 1-11, February.
    5. Nickell, Stephen J, 1979. "Estimating the Probability of Leaving Unemployment," Econometrica, Econometric Society, vol. 47(5), pages 1249-1266, September.
    6. Rosen, Harvey S, 1976. "Taxes in a Labor Supply Model with Joint Wage-Hours Determination," Econometrica, Econometric Society, vol. 44(3), pages 485-507, May.
    7. Mortensen, Dale T, 1970. "Job Search, the Duration of Unemployment, and the Phillips Curve," American Economic Review, American Economic Association, vol. 60(5), pages 847-862, December.
    8. Ehrenberg, Ronald G & Oaxaca, Ronald L, 1976. "Unemployment Insurance, Duration of Unemployment, and Subsequent Wage Gain," American Economic Review, American Economic Association, vol. 66(5), pages 754-766, December.
    9. Lancaster, Tony, 1979. "Econometric Methods for the Duration of Unemployment," Econometrica, Econometric Society, vol. 47(4), pages 939-956, July.
    10. Heckman, James J & Borjas, George J, 1980. "Does Unemployment Cause Future Unemployment? Definitions, Questions and Answers from a Continuous Time Model of Heterogeneity and State Dependence," Economica, London School of Economics and Political Science, vol. 47(187), pages 247-283, August.
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