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Jumps and Betas: A New Theoretical Framework for Disentangling and Estimating Systematic Risks, Journal of Econometrics

Abstract

We provide a new theoretical framework for disentangling and estimating sensitivity towards systematic diffusive and jump risks in the context of factor pricing models. Our estimates of the sensitivities towards systematic risks, or betas, are based on the notion of increasingly finer sampled returns over fixed time intervals. In addition to establishing consistency of our estimators, we also derive Central Limit Theorems characterizing their asymptotic distributions. In an empirical application of the new procedures using high-frequency data for forty individual stocks and an aggregate market portfolio, we find the estimated diffusive and jump betas with respect to the market to be quite different for many of the stocks. Our findings have direct and important implications for empirical asset pricing finance and practical portfolio and risk management decisions.

Type

Article

Author(s)

Viktor Todorov, Tim Bollerslev

Date Published

2010

Citations

Todorov, Viktor, and Tim Bollerslev. 2010. Jumps and Betas: A New Theoretical Framework for Disentangling and Estimating Systematic Risks. Journal of Econometrics. 157: 220-235.

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