Discussion paper

DP7726 Factor-GMM Estimation with Large Sets of Possibly Weak Instruments

This paper analyses the use of factor analysis for instrumental variable estimation when the number of instruments tends to infinity. In particular, we focus on situations where many weak instruments exist and/or the factor structure is weak. Theoretical results, simulation experiments and empirical applications highlight the relevance of Factor-GMM estimation, which is also easily implemented.

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Citation

Marcellino, M and G Kapetanios (2010), ‘DP7726 Factor-GMM Estimation with Large Sets of Possibly Weak Instruments‘, CEPR Discussion Paper No. 7726. CEPR Press, Paris & London. https://cepr.org/publications/dp7726