Arbeitspapier

A Nonlinear Unit Root Test in the Presence of an Unknown Break

The Perron test is the most commonly applied procedure to test for a unit root in the presence of a structural break of unknown timing in the trend function. Deriving the Perron-type test regression from an unobserved component model, it is shown that the test regression in fact is nonlinear in coefficient. Taking account of the nonlinearity leads to a test with properties that are exclusively assigned to Schmidt-Phillips LM-type unit root tests.

ISBN
978-3-86788-046-6
Language
Englisch

Bibliographic citation
Series: Ruhr Economic Papers ; No. 45

Classification
Wirtschaft
Hypothesis Testing: General
Single Equation Models; Single Variables: Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
Subject
Unit root tests
nonlinear regression
structural breaks
innovational outliers
Unit Root Test
Regression
Strukturbruch
Nichtlineares Verfahren
Theorie

Event
Geistige Schöpfung
(who)
Popp, Stephan
Event
Veröffentlichung
(who)
Rheinisch-Westfälisches Institut für Wirtschaftsforschung (RWI)
(where)
Essen
(when)
2008

Handle
Last update
10.03.2025, 11:43 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Popp, Stephan
  • Rheinisch-Westfälisches Institut für Wirtschaftsforschung (RWI)

Time of origin

  • 2008

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