Missing Observations in Observation-Driven Time Series Models
Francisco Blasques (f.blasques@vu.nl),
Paolo Gorgi and
Siem Jan Koopman
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Paolo Gorgi: VU Amsterdam, The Netherlands
No 18-013/III, Tinbergen Institute Discussion Papers from Tinbergen Institute
Abstract:
We argue that existing methods for the treatment of missing observations in observation-driven models lead to inconsistent inference. We provide a formal proof of this inconsistency for a Gaussian model with time-varying mean. A Monte Carlo simulation study supports this theoretical result and illustrates how the inconsistency problem extends to score-driven and, more generally, to observation-driven models, which include well-known models for conditional volatility. To overcome the problem of inconsistent inference, we propose a novel estimation procedure based on indirect inference. This easy-to-implement method delivers consistent inference. The asymptotic properties are formally derived. Our proposed method shows a promising performance in both a Monte Carlo study and an empirical study concerning the measurement of conditional volatility from financial returns data.
Keywords: missing data; observation-driven models; consistency; indirect inference; volatility (search for similar items in EconPapers)
JEL-codes: C22 C58 (search for similar items in EconPapers)
Date: 2018-02-09
New Economics Papers: this item is included in nep-ecm, nep-ets and nep-ore
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Citations: View citations in EconPapers (2)
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Journal Article: Missing observations in observation-driven time series models (2021)
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Persistent link: https://EconPapers.repec.org/RePEc:tin:wpaper:20180013
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