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Moment Approximation for Least Squares Estimators in Dynamic Regression Models with a Unit Root

Kiviet, Jan F.; Phillips, Garry D.A. - 2001

Asymptotic expansions are employed in a dynamic regression model with a unit root inorder to find approximations for the bias, the variance and for the mean squared error of theleast-squares estimator of all coefficients. It is found that in this particular context suchexpansions exist only when...

Persistent link: https://www.econbiz.de/10010325064

Bayesian estimation and model selection in the generalised stochastic unit root model

Yang, Fuyu; Leon-Gonzalez, Roberto - 2010

We develop Bayesian techniques for estimation and model comparison in a novel Generalised Stochastic Unit Root (GSTUR) model. This allows us to investigate the presence of a deterministic time trend in economic series, while allowing the degree of persistence to change over time. In particular...

Persistent link: https://www.econbiz.de/10010270805

Signal extraction: How (in)efficient are model-based approaches?An empirical study based on TRAMO/SEATS and census X-12-ARIMA

Wildi, Marc; Schips, Bernd - 2004

Estimation of signals at the current boundary of time series is an important task in many practical applications. In order to apply the symmetric filter at current time, model-based approaches typically rely on forecasts generated from a time series model in order to extend (stretch) the time...

Persistent link: https://www.econbiz.de/10010285897

Efficiency of South Asian capital markets: An empirical analysis

Mishra, P. K. - In: Pakistan Journal of Commerce and Social Sciences (PJCSS) 6 (2012) 1, pp. 27-34

In recent years, especially in the aftermath of the global financial meltdown, the performance of South Asia capital markets has attracted the attention of the researchers and investors across the globe. The resilient shown provides the impetus to examine the efficient market hypothesis in these...

Persistent link: https://www.econbiz.de/10011938297

Critical values for cointegration tests

MacKinnon, James G. - 2010

This paper provides tables of critical values for some popular tests of cointegration and unit roots. Although these tables are necessarily based on computer simulations, they are much more accurate than those previously available. The results of the simulation experiments are summarized by...

Persistent link: https://www.econbiz.de/10010290329

A new unit root test against ESTAR based on a class of modified statistics

Kruse, Robinson - 2008

This paper proposes a new unit root test against a non-linear exponential smooth transition autoregressive (ESTAR) model. The new test is build upon the non-standard testing approach of Abadir and Distaso (2007) who introduce a class of modified statistics for testing joint hypotheses when one...

Persistent link: https://www.econbiz.de/10010264945

Testing for stationarity in a cointegrated system

Kunst, Robert M. - 2002

In systems of variables with a specified or already identified cointegrating rank, stationarity of component variates can be tested by a simple restriction test. The implied decision is often in conflict with the outcome of unit root tests on the same variables. Using a framework of Bayes...

Persistent link: https://www.econbiz.de/10010292762

Cointegration analysis with state space models

Wagner, Martin - 2010

This paper presents and exemplifies results developed for cointegration analysis with state space models by Bauer and Wagner in a series of papers. Unit root processes, cointegration and polynomial cointegration are defined. Based upon these definitions the major part of the paper discusses how...

Persistent link: https://www.econbiz.de/10010294007

A nonparametric test for seasonal unit roots

Kunst, Robert M. - 2009

We consider a nonparametric test for the null of seasonal unit roots in quarterly time series that builds on the RUR (records unit root) test by Aparicio, Escribano, and Sipols. We find that the test concept is more promising than a formalization of visual aids such as plots by quarter. In order...

Persistent link: https://www.econbiz.de/10010294023

Taking a DSGE Model to the Data Meaningfully

Franchi, Massimo; Jusélius, Katarina - In: Economics: The Open-Access, Open-Assessment E-Journal 1 (2007) 2007-4, pp. 1-38

all basic assumptions underlying the theory model should be formulated as a set of testable hypotheses on the long …-run structure of a CVAR model, a so called 'theory consistent hypothetical scenario'. The advantage of such a scenario is that it … forces us to formulate all testable implications of the basic hypotheses underlying a theory model. We demonstrate that most …

Persistent link: https://www.econbiz.de/10010295287

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