Minimum distance estimation of nonstationary time series models

Hyungsik Roger Moon, Frank Schorfheide

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper analyzes the limit distribution of minimum distance (MD) estimators for nonstationary time series models that involve nonlinear parameter restrictions. A rotation for the restricted parameter space is constructed to separate the components of the MD estimator that converge at different rates. We derive regularity conditions for the restriction function that are easier to verify than the stochastic equicontinuity conditions that arise from direct estimation of the restricted parameters. The sequence of matrices that is used to weigh the discrepancy between the unrestricted estimates and the restriction function is allowed to have a stochastic limit. For MD estimators based on unrestricted estimators with a mixed normal asymptotic distribution the optimal weight matrix is derived and a goodness-of-fit test is proposed. Our estimation theory is illustrated in the context of a permanent-income model and a present-value model.

Original languageEnglish
Pages (from-to)1385-1407
Number of pages23
JournalEconometric Theory
Volume18
Issue number6
DOIs
Publication statusPublished - 2002 Dec

All Science Journal Classification (ASJC) codes

  • Social Sciences (miscellaneous)
  • Economics and Econometrics

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