Arbeitspapier

Constructing Panel Data Estimators by Aggregation: A General Moment Estimator and a Suggested Synthesis

A regression equation for panel data with two-way random or fixed effects and a set of individual specific and period specific `within individual' and `within period', estimators of its slope coefficients are considered. They can be given Ordinary Least Squares (OLS) or Instrumental Variables (IV) interpretations. A class of estimators, obtained as an arbitrary linear combination of these `disaggregate' estimators, is defined and an expression for its variance-covariance matrix is derived. Nine familiar `aggregate' estimators which utilize the entire data set, including two between, three within, three GLS, as well as the standard OLS, emerge by specific choices of the weights. Other estimators in this class which are more robust to simultaneity and measurement error bias than the standard aggregate estimators and more efficient than the `disaggregate' estimators, are also considered. An empirical illustration of robustness and efficiency, relating to manufacturing productivity, is given.

Language
Englisch

Bibliographic citation
Series: Discussion Papers ; No. 420

Classification
Wirtschaft
Estimation: General
Single Equation Models; Single Variables: Panel Data Models; Spatio-temporal Models
Index Numbers and Aggregation; Leading indicators
Subject
Panel data. Aggregation. Simultaneity. Measurement error. Method of moments. Factor productivity

Event
Geistige Schöpfung
(who)
Biørn, Erik
Event
Veröffentlichung
(who)
Statistics Norway, Research Department
(where)
Oslo
(when)
2005

Handle
Last update
10.03.2025, 11:41 AM CET

Data provider

This object is provided by:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.

Object type

  • Arbeitspapier

Associated

  • Biørn, Erik
  • Statistics Norway, Research Department

Time of origin

  • 2005

Other Objects (12)