“…The HP filter was first employed by Hodrick and Prescott in the early 1980s to study the business cycle for the United States. Thus far, it is one of the most commonly applied techniques to extract the cyclical component in business cycle analysis -see, for example, Everhart and Duval-Hernandez (2000), Kranendonk et al (2005), Bascos-Deveza (2006), Zalewski (2009) andPolasek (2010).…”