nep-ets New Economics Papers
on Econometric Time Series
Issue of 2022‒05‒23
two papers chosen by
Jaqueson K. Galimberti
Auckland University of Technology

  1. Generic Identifiability for REMIS: The Cointegrated Unit Root VAR By Philipp Gersing; Leopold Soegner; Manfred Deistler
  2. Two-step estimation in linear regressions with adaptive learning By Alexander Mayer

  1. By: Philipp Gersing; Leopold Soegner; Manfred Deistler
    Abstract: The "REtrieval from MIxed Sampling" (REMIS) approach based on blocking developed in Anderson et al. (2016a) is concerned with retrieving an underlying high frequency model from mixed frequency observations. In this paper we investigate parameter-identifiability in the Johansen (1995) vector error correction model for mixed frequency data. We prove that from the second moments of the blocked process after taking differences at lag N (N is the slow sampling rate), the parameters of the high frequency system are generically identified. We treat the stock and the flow case as well as deterministic terms.
    Date: 2022–04
  2. By: Alexander Mayer
    Abstract: Weak consistency and asymptotic normality of the ordinary least-squares estimator in a linear regression with adaptive learning is derived when the crucial, so-called, `gain' parameter is estimated in a first step by nonlinear least squares from an auxiliary model. The singular limiting distribution of the two-step estimator is normal and in general affected by the sampling uncertainty from the first step. However, this `generated-regressor' issue disappears for certain parameter combinations.
    Date: 2022–04

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