“…The HP filter, however, exhibits some limitations. The prior requirement and arbitrary determination of the parameter (λ) that penalizes smoothness versus fit (Álvarez & Gómez-Loscos, 2018), poor behaviour in recent observations (Álvarez & Gómez-Loscos, 2018;Caporale et al, 2018), spurious cycles for series with classic spectral shape (Álvarez & Gómez-Loscos, 2018) and the specificity to the United States data and economic structure that may not fit other economies (Caporale et al, 2018;Sarikaya, Ogunc, Ece, Kara, & Ozlale, 2005) are some of the key limitations of the HP filter.…”