Mixed logit models 1 and 2
| Model 1: Mixed logit | Model 2: Mixed logit with species-format interactions | ||||
|---|---|---|---|---|---|
| Variable | Mean coefficients (std. errors) | Standard deviations (std. errors) | Mean coefficients (std. errors) | Standard deviations (std. errors) | |
| No choice alternative specific constant (ASC) | −5.796*** (0.257) | 2.445*** (0.200) | −6.078*** (0.265) | 2.427*** (0.170) | |
| Species | Mackerel | −2.759*** (0.153) | 1.727*** (0.131) | −3.118*** (0.202) | 1.678*** (0.133) |
| Herring | −3.407*** (0.188) | 1.180*** (0.201) | −3.870*** (0.254) | 1.454*** (0.205) | |
| Cod | −0.089 (0.091) | 1.247*** (0.118) | −0.003 (0.149) | 1.248*** (0.128) | |
| Haddock | −0.894*** (0.106) | 0.934*** (0.164) | −1.259*** (0.156) | 0.857*** (0.209) | |
| Hake | −2.131*** (0.161) | 0.997*** (0.205) | −2.653*** (0.234) | 1.049*** (0.214) | |
| Sea bass | −1.107*** (0.120) | 1.240*** (0.154) | −1.384*** (0.172) | 1.343*** (0.192) | |
| Sole | −2.137*** (0.138) | 1.136*** (0.147) | −2.235*** (0.186) | 1.073*** (0.172) | |
| Format | Breaded | −0.318*** (0.066) | 0.839*** (0.081) | −0.956*** (0.195) | 0.796*** (0.106) |
| Easy-to-cook | −0.249*** (0.055) | 0.255 (0.187) | −0.237* (0.139) | 0.214 (0.167) | |
| Origin | Domestic | −0.261*** (0.061) | 0.026 (0.074) | −0.290*** (0.069) | 0.048 (0.111) |
| Imported (Europe) | −0.858*** (0.073) | 0.463*** (0.095) | −0.906*** (0.081) | 0.389*** (0.131) | |
| Imported (Outside Europe) | −1.008*** (0.086) | 0.831*** (0.094) | −1.026*** (0.091) | 0.805*** (0.112) | |
| Sustainability Messaging | Healthy fish stocks | 0.388*** (0.055) | 0.229 (0.144) | 0.472*** (0.066) | 0.252 (0.231) |
| Well-managed fishery | 0.346*** (0.057) | 0.230 (0.165) | 0.445*** (0.067) | 0.261 (0.163) | |
| Price | −1.244*** (0.067) | 0.704*** (0.038) | −1.174*** (0.069) | 0.676*** (0.048) | |
| Species × Format | Mackerel × Breaded | 0.693** (0.297) | 1.143** (0.446) | ||
| Mackerel × Easy-to-cook | 0.157 (0.341) | 0.526 (1.595) | |||
| Herring × Breaded | 1.135*** (0.328) | 0.446 (0.751) | |||
| Herring × Easy-to-cook | −0.675** (0.330) | 0.705** (0.357) | |||
| Cod × Breaded | 0.472* (0.268) | 0.339 (0.437) | |||
| Cod × Easy-to-cook | −0.462** (0.221) | 0.577 (0.416) | |||
| Haddock × Breaded | 0.995*** (0.256) | 0.264 (0.286) | |||
| Haddock × Easy-to-cook | 0.219 (0.234) | 0.401 (0.586) | |||
| Hake × Breaded | 0.667* (0.403) | 1.275*** (0.444) | |||
| Hake × Easy-to-cook | 0.428* (0.238) | 0.020 (0.285) | |||
| Sea bass × Breaded | −0.070 (0.390) | 1.898*** (0.528) | |||
| Sea bass × Easy-to-cook | 0.278 (0.235) | 0.511 (0.534) | |||
| Sole × Breaded | 0.639** (0.256) | 0.297 (0.272) | |||
| Sole × Easy-to-cook | −0.448 (0.295) | 1.223** (0.526) | |||
| Log-Likelihood | −7034.08 | −6998.08 | |||
| AIC | 14132.17 | 14116.16 | |||
| BIC | 14343.53 | 14512.47 | |||
| R2 | 0.1995 | 0.2036 | |||
| Adj. R2 | 0.1959 | 0.1968 | |||
| Observations | 5,460 | 5,460 | |||
| Model 1: Mixed logit | Model 2: Mixed logit with species-format interactions | ||||
|---|---|---|---|---|---|
| Variable | Mean coefficients (std. errors) | Standard deviations (std. errors) | Mean coefficients (std. errors) | Standard deviations (std. errors) | |
| No choice alternative specific constant (ASC) | −5.796*** (0.257) | 2.445*** (0.200) | −6.078*** (0.265) | 2.427*** (0.170) | |
| −2.759*** (0.153) | 1.727*** (0.131) | −3.118*** (0.202) | 1.678*** (0.133) | ||
| −3.407*** (0.188) | 1.180*** (0.201) | −3.870*** (0.254) | 1.454*** (0.205) | ||
| −0.089 (0.091) | 1.247*** (0.118) | −0.003 (0.149) | 1.248*** (0.128) | ||
| −0.894*** (0.106) | 0.934*** (0.164) | −1.259*** (0.156) | 0.857*** (0.209) | ||
| −2.131*** (0.161) | 0.997*** (0.205) | −2.653*** (0.234) | 1.049*** (0.214) | ||
| −1.107*** (0.120) | 1.240*** (0.154) | −1.384*** (0.172) | 1.343*** (0.192) | ||
| −2.137*** (0.138) | 1.136*** (0.147) | −2.235*** (0.186) | 1.073*** (0.172) | ||
| −0.318*** (0.066) | 0.839*** (0.081) | −0.956*** (0.195) | 0.796*** (0.106) | ||
| −0.249*** (0.055) | 0.255 (0.187) | −0.237* | 0.214 (0.167) | ||
| −0.261*** (0.061) | 0.026 (0.074) | −0.290*** (0.069) | 0.048 (0.111) | ||
| −0.858*** (0.073) | 0.463*** (0.095) | −0.906*** (0.081) | 0.389*** (0.131) | ||
| −1.008*** (0.086) | 0.831*** (0.094) | −1.026*** (0.091) | 0.805*** (0.112) | ||
| 0.388*** (0.055) | 0.229 | 0.472*** (0.066) | 0.252 (0.231) | ||
| 0.346*** (0.057) | 0.230 | 0.445*** (0.067) | 0.261 (0.163) | ||
| −1.244*** (0.067) | 0.704*** (0.038) | −1.174*** (0.069) | 0.676*** (0.048) | ||
| 0.693** (0.297) | 1.143** (0.446) | ||||
| 0.157 (0.341) | 0.526 (1.595) | ||||
| 1.135*** (0.328) | 0.446 (0.751) | ||||
| −0.675** (0.330) | 0.705** (0.357) | ||||
| 0.472* (0.268) | 0.339 (0.437) | ||||
| −0.462** (0.221) | 0.577 (0.416) | ||||
| 0.995*** (0.256) | 0.264 (0.286) | ||||
| 0.219 (0.234) | 0.401 (0.586) | ||||
| 0.667* (0.403) | 1.275*** (0.444) | ||||
| 0.428* (0.238) | 0.020 (0.285) | ||||
| −0.070 (0.390) | 1.898*** (0.528) | ||||
| 0.278 (0.235) | 0.511 (0.534) | ||||
| 0.639** (0.256) | 0.297 (0.272) | ||||
| −0.448 (0.295) | 1.223** (0.526) | ||||
| −7034.08 | −6998.08 | ||||
| 14132.17 | 14116.16 | ||||
| 14343.53 | 14512.47 | ||||
| 0.1995 | 0.2036 | ||||
| 0.1959 | 0.1968 | ||||
| 5,460 | 5,460 | ||||
Note(s): *** statistical significance at 1% level, ** statistical significance at 5% level; * statistical significance at 10% level
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