Table 8.
Random parameter logit estimates of farmer’s preferences for PRRS vaccination
| Price (VND) | Compensation 0% | Compensation (%) | Price = 40,000 VND | ||
|---|---|---|---|---|---|
|
|
|
||||
| Probability (%)1 | t-ratio | Probability (%) | t-ratio | ||
| 70,000 | 0.35 | 0.715 | 0 | 18.66 | 2.265 ** |
| 65,000 | 0.72 | 0.810 | 10 | 22.66 | 2.418 ** |
| 60,000 | 1.42 | 0.934 | 20 | 27.22 | 2.609 *** |
| 55,000 | 2.80 | 1.103 | 30 | 32.34 | 2.846 *** |
| 50,000 | 5.44 | 1.344 | 40 | 37.90 | 3.148 *** |
| 45,000 | 10.30 | 1.705 * | 50 | 43.81 | 3.529 *** |
| 40,000 | 18.66 | 2.265 ** | 60 | 49.89 | 4.014 *** |
| 35,000 | 31.42 | 3.109 *** | 70 | 55.98 | 4.633 *** |
| 30,000 | 47.79 | 4.243 *** | 80 | 61.89 | 5.424 *** |
| 25,000 | 64.65 | 5.705 *** | 90 | 67.47 | 6.437 *** |
| 20,000 | 78.51 | 7.907 *** | 100 | 72.60 | 7.738 *** |
| 15,000 | 87.95 | 11.676 *** | |||
| 10,000 | 93.58 | 18.331 *** | |||
| 5,000 | 96.68 | 30.156 *** | |||
PRRS, porcine reproductive and respiratory syndrome; VND, Vietnam Dong; SIR, susceptible infected recovered.
Statistical significance levels, *** 1%; ** 5%; * 10%.
1
We selected the values from ‘Probability’ as the vaccination proportion ‘θ’ in SIR model.