In this paper we consider the problem of testing the null hypothesis that a series has a constant level against the alternative that the level follows a random walk. This problem has previously been studied by inter alia, Nyblom and Makelainen in the context of the orthogonal random walk plus noise model.
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Paper provided by Department of Economics, University of Birmingham in its series Discussion Papers with number
00-09.
Find related papers by JEL classification: C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General - - - Hypothesis Testing C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation and Testing C2 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables
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