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Identification robust inference for the risk premium in term structure models

journal contribution
posted on 2024-04-24, 08:04 authored by F.R. KleibergenF.R. Kleibergen, Lingwei Kong

Abstract

We propose identification robust statistics for testing hypotheses on the risk premia in dynamic affine term structure models. We do so using the moment equation specification proposed in Adrian et al. (2013). Statistical inference based on their three-stage estimator requires knowledge of the risk factors’ quality and can be misleading when the betas’s are weak, which results when sampling errors are of comparable order of magnitude as the risk factor loadings. We extend the subset (factor) Anderson–Rubin test from Guggenberger et al. (2012) to models with multiple dynamic factors and time-varying risk prices. It provides a computationally tractable manner to conduct identification robust tests on a few risk premia when a larger number is present. We use it to analyze potential identification issues arising in the (publicly available) data from Adrian et al. (2013) for which we show that some factors, though potentially weak, may drive the time variation of risk prices, and weak identification issues are more prominent in multi-factor models.

Funding

The research of Frank Kleibergen has been funded partly by the NWO (Dutch Research Council) grant 401.21.EB.002: “Double robust inference for structural economic models (DRISEM)”.

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2034-05-28

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    Quantitative Economics

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