Showing 1 - 10 of 498
This paper uses a seasonal long-memory model to capture the behaviour of the US Industrial Production Index (IPI) over the period 1919Q1-2022Q4. This series is found to display a large value of the periodogram at the zero, long-run frequency, and to exhibit an order of integration around 1. When...
Persistent link: https://www.econbiz.de/10014427486
Persistent link: https://www.econbiz.de/10008699280
Persistent link: https://www.econbiz.de/10003428302
Persistent link: https://www.econbiz.de/10003641950
Persistent link: https://www.econbiz.de/10003497650
Persistent link: https://www.econbiz.de/10003391466
We propose in this article the use of a particular version of the tests of Robinson (1994) for testing seasonally fractionally integrated processes. The tests have standard null and local limit distributions and allow us to test unit and fractional seasonal roots even with different amplitudes...
Persistent link: https://www.econbiz.de/10009582382
We make use in this article of a testing procedure suggested by Robinson (1994) for testing deterministic seasonality versus seasonal fractional integration. A new test statistic is developed to simultaneously test both, the order of integration of the seasonal component and the need of seasonal...
Persistent link: https://www.econbiz.de/10009612017
This paper considers a general model which allows for both deterministic and stochastic forms of seasonality, including fractional (stationary and nonstationary) orders of integration, and also incorporating endogenously determined structural breaks. Monte Carlo analysis shows that the suggested...
Persistent link: https://www.econbiz.de/10013317060
Persistent link: https://www.econbiz.de/10002091206