Hypothetical bias and framing effect in the valuation of private consumer goods Publié en ligne: 13 oct. 2019 Pages: 260 - 269 © 2018 M. Brzozowicz, published by Sciendo This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Fig. 1 Experiment: WTPs by treatment (in PLN). Notes: The blue rectangle represents the middle 50% of the data (from the first quartile to the third quartile), the line inside the box shows the median (the second quartile), and the whiskers represent the top and the bottom 25% values, excluding outliers, which are represented by dots. Descriptive statistics (monetary values in PLN) HypoN HypoP RealN RealP n 42 38 44 43 Mean 31.19 35.11 17.30 19.56 Median 30 35 15 15 Standard deviation 13.95 15.47 13.44 15.77
Regression table: WTP values Ml b/z M2 b/z M3 b/z M4 b/z hypothetical 11.197*** (4.970) 11.923*** (4.033) 13.547*** (4.906) 12.341*** (6.022) framing_pos 2.594 (1.189) 3.320 (1.144) 2.857 (1.033) information_e 11.539*** (5.254) 11.649*** (5.243) 9.653*** (4.447) 9.462*** (4.422) needs_e 2.423 (1.044) 2.412 (1.036) finance_e 3.480 (1.411) 3.463 (1.399) using_mascara 4.395 (1.283) 4.299 (1.248) price_30–50 6.167** (2.529) 6.171** (2.523) 5.792** (2.546) 5.826** (2.569) price>50 9.371*** (2.797) 9.450*** (2.807) 8.426*** (2.752) 8.851*** (2.944) cosm_expenses 5.714** (2.309) 5.662** (2.278) 5.705** (2.431) 5.569** (2.388) the_same_masc -3.358 (-1.401) -3.469 (-1.432) self_assessment -2.304 (-0.941) -2.242 (-0.911) relationship 4.397** (2.007) 4.282* (1.931) finaneial_syt -0.793 (-0.359) -0.871 (-0.391) age -1.083 (-0.869) -1.080 (-0.863) hypoXfram_pos -1.650 (-0.381) -2.481 (-0.608) design_e -5.826** (-2.390) -5.902** (-2.434) constant 24.056 (0.924) 23.760 (0.909) 8.486*** (3.329) 9.951*** (4.732) N 154 154 160 160 R-sgr 0.4604 0.4610 0.4401 0.4361 F 8.47 7.87 14.83 19.72 Prok>F 0.0000 0.0000 0.0000 0.0000