Table 4 Pairwise diff-in-diff results on WTP change after Kernel propensity score matching; results on common support in italics
Reference group | Versus CB match | Versus ES match | Versus control match |
|---|---|---|---|
CB |  | + 290 [t = 1.28] + 268 [t = 1.22] | + 667 [t = 2.44**] + 726 [t = 2.49**] |
ES | − 870 [t = 3.84***] − 847 [t = 3.42***] |  | + 189 [t = 0.81] + 220 [t = 0.84] |
Control | − 752 [t = 2.48**] − 760 [t = 2.43**] | − 167 [t = 0.68] − 184 [t = 0.68] |  |