Willingness to pay for pST-treated pork
研究调查了美国亚特兰大消费者对使用猪生长激素生产的瘦猪肉的支付意愿，发现经常吃猪肉的消费者愿意多付18美分每公斤。
The progress in porcine somatotropin (pST) application justified an assessment of consumer acceptance of pST-treated pork. A survey of the Atlanta metropolitan area, USA, collected information about consumer attitudes toward lean pork produced with biotechnologically developed pST. A qualitative dependent variable model was used to identify socioeconomic consumer characteristics influencing the willingness to pay for lean pork. The model was modified to account for the selectivity bias of the sample data. Results indicate that frequent pork consumers were willing to pay more for lean pork produced using pST in contrast to respondents who frequently ate beef, were older, and had relatively high income. Probabilities associated with the willingness to pay a specific premium were calculated. In general, the average respondent was willing to pay an additional 18¢ per kg of lean pork produced using pST.