Table 3.
The variable index determination for the Tobit model.
| Variable | Classification Index | Mean | Standard Deviation |
|---|---|---|---|
| Willingness to accept (WTA) without information treatment | Mean bids of trial 1 to 3 in Group A (AWTA). | 2.16 | 1.68 |
| Mean bids of trial 1 to 3 in Group B (BWTA). | 1.89 | 1.36 | |
| WTA under positive information | Mean bids of trial 4 to 6 in Group A (WTA+). | 2.06 | 1.67 |
| WTA under negative information | Mean bids of trial 4 to 6 in Group B (WTA−). | 3.54 | 2.32 |
| WTA under positive and negative information | Mean bids of trial 7 to 9 in Group A (WTA+−). | 3.64 | 2.67 |
| WTA under negative and positive information | Mean bids of trial 7 to 9 in Group B (WTA−+). | 2.57 | 1.60 |
| Female | No = 0, Yes = 1 (FEMALE) | 0.52 | 0.50 |
| Age 26 to 45 | No = 0, Yes = 1 (LAGE) | 0.55 | 0.50 |
| Age 46 to 60 | No = 0, Yes = 1 (MAGE) | 0.12 | 0.33 |
| Age above 60 | No = 0, Yes = 1 (HAGE) | 0.07 | 0.25 |
| High school or vocational high school | No = 0, Yes = 1 (LEDU) | 0.34 | 0.48 |
| Junior college or above | No = 0, Yes = 1 (MEDU) | 0.40 | 0.49 |
| Master or above | No = 0, Yes = 1 (HEDU) | 0.06 | 0.24 |
| Yearly family income ¥60–100 thousand | No = 0, Yes = 1 (MINCOM) | 0.13 | 0.34 |
| Yearly family income above ¥100 thousand | No = 0, Yes = 1 (HINCOM) | 0.35 | 0.47 |
| Inclusion of dependent children in the family | No = 0, Yes = 1 (KID) | 0.62 | 0.53 |
| Medium knowledge about additives | No = 0, Yes = 1 (MKNOW) | 0.42 | 0.49 |
| High knowledge about additives | No = 0, Yes = 1 (HKNOW) | 0.55 | 0.50 |
| Satisfaction of food safety | No = 0, Yes = 1 (SATISF) | 0.23 | 0.42 |
| Care about food safety | No = 0, Yes = 1 (CARE) | 0.96 | 0.20 |