“…They also consider the possibility of advancing empirical studies from a psychological analysis based on consistency tests (De Groot & Steg, 2006;Link, 2007). Or ex-post studies performed to investigate changes of individual behavior in response to policies (Ungemah & Swicher, 2006, Schade & Baum, 2007Winslott-Hiselius et al, 2009). Clearly, the second method is aimed at assessing the acceptability of the measure either before or after application through stated preference surveys or revealed.…”