Details
Original language | English |
---|---|
Pages (from-to) | 457-474 |
Number of pages | 18 |
Journal | Empirical economics |
Volume | 43 |
Issue number | 2 |
Early online date | 4 Jan 2011 |
Publication status | Published - Oct 2012 |
Abstract
Nonlinear modeling of adjustments to purchasing power parity has recently gained much attention. However, a huge body of the empirical literature applies ESTAR models and neglects the existence of other competing nonlinear models. Among these, the Markov Switching AR model has a strong substantiation in international finance. Our contribution to the literature is fivefold: First, ESTAR and MSAR models from a unit root perspective are compared. To this end, a new unit root test against MSAR is proposed as the second contribution. Thirdly, the case of misspecified alternatives in a Monte Carlo setup with real world parameter constellations is studied. The ESTAR unit root test is not indicative, while the MSAR unit test is robust. Fourthly, the case of correctly specified alternatives is considered and low power of the ESTAR but not for the MSAR unit root test is observed. Fifthly, an empirical application to real exchange rates suggests that they may indeed be explained by Markov Switching dynamics rather than ESTAR.
Keywords
- ESTAR, Markov Switching, PPP, Real exchange rates, Unit root test
ASJC Scopus subject areas
- Mathematics(all)
- Statistics and Probability
- Mathematics(all)
- Mathematics (miscellaneous)
- Social Sciences(all)
- Social Sciences (miscellaneous)
- Economics, Econometrics and Finance(all)
- Economics and Econometrics
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In: Empirical economics, Vol. 43, No. 2, 10.2012, p. 457-474.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - What do we know about real exchange rate nonlinearities?
AU - Kruse, Robinson
AU - Frömmel, Michael
AU - Menkhoff, Lukas
AU - Sibbertsen, Philipp
N1 - Funding Information: Robinson Kruse gratefully acknowledges financial support from the CREATES funded by the Danish National Research Foundation.
PY - 2012/10
Y1 - 2012/10
N2 - Nonlinear modeling of adjustments to purchasing power parity has recently gained much attention. However, a huge body of the empirical literature applies ESTAR models and neglects the existence of other competing nonlinear models. Among these, the Markov Switching AR model has a strong substantiation in international finance. Our contribution to the literature is fivefold: First, ESTAR and MSAR models from a unit root perspective are compared. To this end, a new unit root test against MSAR is proposed as the second contribution. Thirdly, the case of misspecified alternatives in a Monte Carlo setup with real world parameter constellations is studied. The ESTAR unit root test is not indicative, while the MSAR unit test is robust. Fourthly, the case of correctly specified alternatives is considered and low power of the ESTAR but not for the MSAR unit root test is observed. Fifthly, an empirical application to real exchange rates suggests that they may indeed be explained by Markov Switching dynamics rather than ESTAR.
AB - Nonlinear modeling of adjustments to purchasing power parity has recently gained much attention. However, a huge body of the empirical literature applies ESTAR models and neglects the existence of other competing nonlinear models. Among these, the Markov Switching AR model has a strong substantiation in international finance. Our contribution to the literature is fivefold: First, ESTAR and MSAR models from a unit root perspective are compared. To this end, a new unit root test against MSAR is proposed as the second contribution. Thirdly, the case of misspecified alternatives in a Monte Carlo setup with real world parameter constellations is studied. The ESTAR unit root test is not indicative, while the MSAR unit test is robust. Fourthly, the case of correctly specified alternatives is considered and low power of the ESTAR but not for the MSAR unit root test is observed. Fifthly, an empirical application to real exchange rates suggests that they may indeed be explained by Markov Switching dynamics rather than ESTAR.
KW - ESTAR
KW - Markov Switching
KW - PPP
KW - Real exchange rates
KW - Unit root test
UR - http://www.scopus.com/inward/record.url?scp=84865820132&partnerID=8YFLogxK
U2 - 10.1007/s00181-010-0431-2
DO - 10.1007/s00181-010-0431-2
M3 - Article
AN - SCOPUS:84865820132
VL - 43
SP - 457
EP - 474
JO - Empirical economics
JF - Empirical economics
SN - 0377-7332
IS - 2
ER -