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A Predictive Approach to Model Selection and Multicollinearity

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Author Info
Edward Greenberg (Washington University)
Robert P. Parks (Washington University)

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Abstract

We argue for the adoption of a predictive approach to model specification. Specifically, we derive the difference between means and the ratio of determinants of covariance matrices when a subset of explanatory variables is included or excluded from a regression. For several special cases these measures are shown to be related to widely used tools for studying model specification. Results for a set of simulated data and for two economic applications are presented as examples.

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Publisher Info
Paper provided by EconWPA in its series Econometrics with number 9308001.

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Length: 30 pages
Date of creation: 05 Aug 1993
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Handle: RePEc:wpa:wuwpem:9308001

Note: Latex document, 30 pages (22 without figures)
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Web page: http://129.3.20.41

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Find related papers by JEL classification:
C1 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General
C2 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables
C3 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables
C4 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics
C5 - Mathematical and Quantitative Methods - - Econometric Modeling
C8 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs

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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.:

  1. Cooley, Thomas F & LeRoy, Stephen F, 1981. "Identification and Estimation of Money Demand," American Economic Review, American Economic Association, vol. 71(5), pages 825-44, December. [Downloadable!] (restricted)
  2. Zellner, Arnold, 1981. "Posterior odds ratios for regression hypotheses : General considerations and some specific results," Journal of Econometrics, Elsevier, vol. 16(1), pages 151-152, May. [Downloadable!] (restricted)
  3. Zellner, Arnold, 1978. "Jeffreys-Bayes posterior odds ratio and the Akaike information criterion for discriminating between models," Economics Letters, Elsevier, vol. 1(4), pages 337-342. [Downloadable!] (restricted)
  4. Steven Fazzari & Bruce Petersen, 1990. "Investment smoothing with working capital: new evidence on the impact of financial constraints," Working Paper Series, Macroeconomic Issues 90-18, Federal Reserve Bank of Chicago.
  5. Steven Fazzari & R. Glenn Hubbard & Bruce C. Petersen, 1988. "Financing Constraints and Corporate Investment," NBER Working Papers 2387, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  1. Panaretos, John & Psarakis, Stelios & Xekalaki, Evdokia & Karlis, Dimitris, 2005. "The Correlated Gamma-Ratio Distribution in Model Evaluation and Selection," MPRA Paper 6355, University Library of Munich, Germany. [Downloadable!]
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