Caporale, Guglielmo Maria; Gil-Alaña, Luis A.; Poza, Carlos - 2023
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...
