Which of the following products would be least capable of producing an externality?a.inoculations against diseaseb.cigarettesc.foodd.educatione.stereo equipment答案是C 为什么?
还有我不是很理解externality的概念,能不能解释一下!谢谢!请不要复制网上的答案,都看过了,不是很理解!
Which of the following products would be least capable of producing an externality?
a. inoculations against disease
b.cigarettes
c. food
d. education
e.stereo equipment
个人收益不同