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A two sample size estimator for large data sets

Author

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  • O'Connell, Martin
  • Smith, Howard
  • Thomassen, Oyvind

Abstract

In GMM estimators moment conditions with additive error terms involve an observed component and a predicted component. If the predicted component is computationally costly to evaluate, it may not be feasible to estimate the model with all the available data. We propose an estimator that uses the full data set for the computationally cheap observed component, but a reduced sample size for the predicted component. We show consistency, asymptotic normality, and derive standard errors and a practical criterion for when our estimator is variance-reducing. We demonstrate the estimator's properties on a range of models through Monte Carlo studies and an empirical application to alcohol demand.

Suggested Citation

  • O'Connell, Martin & Smith, Howard & Thomassen, Oyvind, 2023. "A two sample size estimator for large data sets," CEPR Discussion Papers 17941, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:17941
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    More about this item

    Keywords

    Gmm; Estimation; Micro data;
    All these keywords.

    JEL classification:

    • C20 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - General
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • C55 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Large Data Sets: Modeling and Analysis

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