Arbeitspapier

Choosing the optimal set of instruments from large instrument sets

It is well known that instrumental variables (IV) estimation is sensitive to the choice of instruments both in small samples and asymptotically. Recently, Donald and Newey (2001) suggested a simple method for choosing the instrument set. The method involves minimising the approximate mean square error (MSE) of a given IV estimator where the MSE is obtained using refined asymptotic theory. An issue with the work of Donald and Newey (2001) is the fact that when considering large sets of valid instruments, it is not clear how to order the instruments in order to choose which ones ought to be included in the estimation. The present paper provides a possible solution to the problem using nonstandard optimisation algorithms. The properties of the algorithms are discussed. A Monte Carlo study illustrates the potential of the new method.

Language
Englisch

Bibliographic citation
Series: Working Paper ; No. 534

Classification
Wirtschaft
Hypothesis Testing: General
Statistical Simulation Methods: General
Single Equation Models; Single Variables: Panel Data Models; Spatio-temporal Models
Subject
Instrumental Variables, MSE, Simulated Annealing, Genetic Algorithms
Instrumentalvariablen-Schätzmethode

Event
Geistige Schöpfung
(who)
Kapetanios, George
Event
Veröffentlichung
(who)
Queen Mary University of London, Department of Economics
(where)
London
(when)
2005

Handle
Last update
10.03.2025, 11:44 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Kapetanios, George
  • Queen Mary University of London, Department of Economics

Time of origin

  • 2005

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