“…In most cases, in addition to socioeconomic variables, other specific variables pertinent to the research are also included. They include landholding size (Das & Mahanta, 2013;Girma & Beyene, 2012;Schiappacasse et al, 2013), village-type (Das & Mahanta, 2013), house type (Jiang, 2018), ethnicity (Girma & Beyene, 2012), length of stay (Girma & Beyene, 2012;O'Garra, 2009;Solikin, 2017) and type of forest use (Ishiguro, 2019). As a result, the WTP and WTW determinants could be different (Solikin, 2017) or similar (Dai et al, 2017).…”