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Table 4
Estimation of odds ratio and average marginal effects of prawn preferences.
| Variables | Odds Ratio | Standard error |
Marginal effect(dy/dx) | Standarderror | p-value | |
|---|---|---|---|---|---|---|
| Extrinsic attributes | ||||||
| Price | 0.485 | *** | 0.111 | −0.089 | 0.027 | 0.001 |
| Production environment | 0.502 | * | 0.204 | −0.085 | 0.050 | 0.087 |
| Availability | 2.373 | ** | 0.832 | 0.107 | 0.042 | 0.011 |
| Intrinsic attributes | ||||||
| Freshness | 5.736 | *** | 2.629 | 0.215 | 0.053 | 0.000 |
| Size | 3.637 | *** | 1.370 | 0.159 | 0.044 | 0.000 |
| Roe | 0.983 | 0.411 | −0.002 | 0.052 | 0.967 | |
| Sensory attributes | ||||||
| Odor | 0.364 | *** | 0.135 | −0.125 | 0.044 | 0.005 |
| Taste | 3.967 | *** | 1.621 | 0.170 | 0.047 | 0.000 |
| Texture | 1.110 | 0.409 | 0.013 | 0.045 | 0.776 | |
| Nutrition | 1.700 | 0.595 | 0.065 | 0.043 | 0.125 | |
| Socio demographic | ||||||
| Age group: base 1: Young | Reference Category | |||||
| 2: Adult | 0.450 | * | 0.187 | −0.095 | 0.050 | 0.055 |
| 3: Old | 0.410 | ** | 0.179 | −0.109 | 0.054 | 0.045 |
| Income level: base 1: Low | Reference Category | |||||
| 2: Medium | 2.278 | * | 0.958 | 0.117 | 0.062 | 0.059 |
| 3: High | 3.319 | *** | 1.509 | 0.160 | 0.061 | 0.009 |
| Constant | 88.543 | *** | 133.436 | |||
| Number of observations | 300 | |||||
| Pseudo r-squared | 0.236 | |||||
| Chi-square | 72.790 | |||||
| Prob > chi2 | 0.000 | |||||
Note: dy/dx for factor levels is the discrete change from the base level.
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