On the fixed-effects vector decomposition
AbstractThis paper analyses the properties of the fixed-effects vector decomposition estimator, an emerging and popular technique for estimating time-invariant variables in panel data models with unit effects. This estimator was initially motivated on heuristic grounds, and advocated on the strength of favorable Monte Carlo results, but with no formal analysis. We show that the three-stage procedure of this decomposition is equivalent to a standard instrumental variables approach, for a specific set of instruments. The instrumental variables representation facilitates the present formal analysis which finds: (1) The estimator reproduces exactly classical fixed-effects estimates for time-varying variables. (2) The standard errors recommended for this estimator are too small for both time-varying and time-invariant variables. (3) The estimator is inconsistent when the time-invariant variables are endogenous. (4) The reported sampling properties in the original Monte Carlo evidence are incorrect. (5) We recommend an alternative shrinkage estimator that has superior risk properties to the decomposition estimator, unless the endogeneity problem is known to be small or no relevant instruments exist.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 21452.
Date of creation: Mar 2010
Date of revision:
panel data models; fixed-effects vector decomposition; instrumental variables; inconsistent estimator; incorrect standard errors; improved shrinkage estimator;
Find related papers by JEL classification:
- C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
- C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
This paper has been announced in the following NEP Reports:
- NEP-ALL-2010-04-04 (All new papers)
- NEP-ECM-2010-04-04 (Econometrics)
- NEP-MIC-2010-04-04 (Microeconomics)
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.:
- Han, Chirok & Schmidt, Peter, 2001. "The asymptotic distribution of the instrumental variable estimators when the instruments are not correlated with the regressors," Economics Letters, Elsevier, vol. 74(1), pages 61-66, December.
- Signe Krogstrup & Sébastien Wälti, 2007.
"Do fiscal rules cause budgetary outcomes?,"
IHEID Working Papers
15-2007, Economics Section, The Graduate Institute of International Studies, revised May 2007.
- Mittelhammer, Ron C. & Judge, George G., 2005. "Combining estimators to improve structural model estimation and inference under quadratic loss," Journal of Econometrics, Elsevier, vol. 128(1), pages 1-29, September.
- Belke, Ansgar & Spies, Julia, 2008.
"Enlarging the EMU to the East: What Effects on Trade?,"
IZA Discussion Papers
3647, Institute for the Study of Labor (IZA).
- Ansgar Belke & Julia Spies, 2008. "Enlarging the EMU to the east: what effects on trade?," Empirica, Springer, vol. 35(4), pages 369-389, September.
- Ansgar Belke & Julia Spies, 2007. "Enlarging the EMU to the east: What effects on trade?," Ruhr Economic Papers 0021, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
- J. A. Hausman & W. E. Taylor, 1980.
"Panel Data and Unobservable Individual Effects,"
255, Massachusetts Institute of Technology (MIT), Department of Economics.
- Hausman, Jerry A & Taylor, William E, 1981. "Panel Data and Unobservable Individual Effects," Econometrica, Econometric Society, vol. 49(6), pages 1377-98, November.
- Hausman, Jerry A. & Taylor, William E., 1981. "Panel data and unobservable individual effects," Journal of Econometrics, Elsevier, vol. 16(1), pages 155-155, May.
- Guglielmo Caporale & Christophe Rault & Robert Sova & Anamaria Sova, 2009.
"On the bilateral trade effects of free trade agreements between the EU-15 and the CEEC-4 countries,"
Review of World Economics (Weltwirtschaftliches Archiv),
Springer, vol. 145(2), pages 189-206, July.
- Guglielmo Caporale & Christophe Rault & Robert Sova & Anamaria Sova, 2009. "On the bilateral trade effects of free trade agreements between the EU-15 and the CEEC-4 countries," Review of World Economics (Weltwirtschaftliches Archiv), Springer, vol. 145(3), pages 573-573, October.
- Caporale, Guglielmo Maria & Rault, Christophe & Sova, Anamaria & Sova, Robert, 2008. "On the Bilateral Trade Effects of Free Trade Agreements between the EU-15 and the CEEC-4 Countries," IZA Discussion Papers 3782, Institute for the Study of Labor (IZA).
- Guglielmo Maria Caporale & Christophe Rault & Robert Sova & Ana Maria Sova, 2008. "On the Bilateral Trade Effects of Free Trade Agreements between the EU-15 and the CEEC-4 Countries," CESifo Working Paper Series 2419, CESifo Group Munich.
- Wong, Ka-fu, 1997. "Effects on inference of pretesting the exogeneity of a regressor," Economics Letters, Elsevier, vol. 56(3), pages 267-271, November.
- Baltagi, Badi H. & Bresson, Georges & Pirotte, Alain, 2003. "Fixed effects, random effects or Hausman-Taylor?: A pretest estimator," Economics Letters, Elsevier, vol. 79(3), pages 361-369, June.
- Timo Mitze, 2009. "Endogeneity in Panel Data Models with Time-Varying and Time-Fixed Regressors: To IV or not IV?," Ruhr Economic Papers 0083, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
- Mundlak, Yair, 1978. "On the Pooling of Time Series and Cross Section Data," Econometrica, Econometric Society, vol. 46(1), pages 69-85, January.
- Kazimi, Camilla & Brownstone, David, 1999. "Bootstrap confidence bands for shrinkage estimators," Journal of Econometrics, Elsevier, vol. 90(1), pages 99-127, May.
- Breusch, Trevor S & Mizon, Grayham E & Schmidt, Peter, 1989. "Efficient Estimation Using Panel Data," Econometrica, Econometric Society, vol. 57(3), pages 695-700, May.
This item has more than 25 citations. To prevent cluttering this page, these citations are listed on a separate page. reading list or among the top items on IDEAS.Access and download statisticsgeneral information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Ekkehart Schlicht).
If references are entirely missing, you can add them using this form.