Showing 1 - 10 of 105
Tests for unit roots and other nonstationary hypotheses that were proposed by Robinson (1994) are applied in this article to the Nelson and Plosser's (1982) series. The tests can be expressed in a way allowing for structural breaks under both the null and the alternative hypotheses. When...
Persistent link: https://www.econbiz.de/10009582385
We analyse in this article the monthly structure of the Brazilian inflation rate by means of fractionally integrated techniques. This series is characterized by strong government interventions to bring inflation to a low level. We use a testing procedure due to Robinson (1994) which allow us to...
Persistent link: https://www.econbiz.de/10009615430
Two types of unit root tests which accommodate a structural level shift at a known point in time are extended to the situation where the break date is unknown. It is shown that for any estimator for the break date the tests have the same asymptotic distribution as the corresponding tests under...
Persistent link: https://www.econbiz.de/10009613596
Persistent link: https://www.econbiz.de/10009611548
The testing of a computing model for a stationary time series is a standard task in statistics. When a parametric approach is used to model the time series, the question of goodness-of-fit arises. In this paper, we employ the empirical likelihood for an a-mixing process and formulate a statistic...
Persistent link: https://www.econbiz.de/10009612573
The annual structure of the real GDP in the UK, France, Germany and Italy is examined in this article by means of fractionally integrated techniques. Using a version of a testing procedure due to Robinson (1994), we show that the series can be specified in terms of I(d) statistical models with d...
Persistent link: https://www.econbiz.de/10009613608
We propose in this article a joint test for testing simultaneously a deterministic trend component and the degree of integration of the cyclical component in a given time series. The test is directly derived from Robinson's (1994) procedure, which is based on the Lagrange Multiplier (LM)...
Persistent link: https://www.econbiz.de/10009613609
Alternative modeling strategies for specifying subset VAR models are considered. It is shown that under certain conditions a testing procedure based on t-ratios is equivalent to sequentially eliminating lags that lead to the largest improvement in a prespecified model selection criterion. A...
Persistent link: https://www.econbiz.de/10009583885
This paper examines the relationship between unemployment, real oil price and real interest rates in Canada. Instead of …/cointegration techniques which allow for the possibility that unemployment is highly persistent. In line with other studies, we find that all … equilibrium model with highly persistent shocks might be adequate to account for the observed behaviour of unemployment …
Persistent link: https://www.econbiz.de/10009614880
proposed in this article for modelling the U.K. unemployment. This enables us a better understanding of the low … fractional integration, may be a feasible way of modelling unemployment, also showing that its order of integration is much … erroneous results. -- long memory ; unemployment ; fractional integration …
Persistent link: https://www.econbiz.de/10009611544