Inference for the Linear IV Model Ridge Estimator Using Training and Test Samples

The asymptotic distribution is presented for the linear instrumental variables model estimated with a ridge penalty and a prior where the tuning parameter is selected with a holdout sample. The structural parameters and the tuning parameter are estimated jointly by method of moments. A chi-squared s...

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Bibliografiska uppgifter
Huvudupphovsmän: Fallaw Sowell, Nandana Sengupta
Materialtyp: Artikel
Språk:English
Publicerad: MDPI AG 2021-09-01
Serie:Stats
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Länkar:https://www.mdpi.com/2571-905X/4/3/43
Beskrivning
Sammanfattning:The asymptotic distribution is presented for the linear instrumental variables model estimated with a ridge penalty and a prior where the tuning parameter is selected with a holdout sample. The structural parameters and the tuning parameter are estimated jointly by method of moments. A chi-squared statistic permits confidence regions for the structural parameters. The form of the asymptotic distribution provides insights on the optimal way to perform the split between the training and test sample. Results for the linear regression estimated by ridge regression are presented as a special case.
ISSN:2571-905X