基于居民意愿调查的新疆棉花生产正外部性价值估计

Estimation of positive externalities of cotton production based on CVM

新疆作为我国最主要产棉区,由于其正外部性未得到矫正,棉花生产的稳定发展受到极大影响。因此,文中以新疆棉花生产为例,运用条件价值法(CVM),通过对新疆棉花生产正外部性补贴的支付意愿调查,估算了棉花生产的生态环境、自然景观及社会保障等正外部性的价值。根据受访居民支付意愿研究表明,新疆棉花生产中未通过市场交易体现出来的外部性非市场价值高达724245.78×104元,每亩棉花294.76元。由于棉花生产的正外部性非市场价值十分巨大,现有较低的补贴水平无法起到鼓励棉花生产的作用;因此,建议以棉花生产外部性价值为依据提高棉花补贴标准,增加棉花补贴项目,从而增强其抗风险能力,保证我国棉花产业安全。

Xinjiang province is the most mainly cotton producing area in China, but the improper positive externalities have greatly affected the stable development of its cotton production. Therefore, this research took Xinjiang cotton production as an example, used contingent valuation method, by investigating the willingness to pay for the positive externality subsidy of cotton production, estimated the non - market value of cotton production positive externalities such as the ecological environmental value, the natural landscape value, the social security value, etc. According to the survey of residents willingness to pay, the result of our research showed that the market value of this positive externality is 72. 4246 × 10^8RMB？. Finally, we put forward the policy suggestions a- bout regarding this value as the cotton production subsidy standards, increasing subsidy program, improving sub- sidy level, guaranteeing stable cotton production and ensuring cotton industry security.