5 Shirking model 6Theory of consumer behavior 7Theory of the firm 8Third-degree price discrimination 9Tit-for-tat strategy 10 Two-part tariff 得分阅卷教师 二、简答题：（共10分） 1 A village is located next to 1000 acres of prime grazing land.The village presently owns the land and allows all residents to graze cows freely.Some members of the village council have suggested that the land is being overgrazed.Is this likely to be true?These same me mbers have also suggested that the village should either require grazers to purchasean annual permit,or sell off the land to thegrazers Would either of these be a good idea?5 Shirking model 6 Theory of consumer behavior 7 Theory of the firm 8 Third-degree price discrimination 9 Tit-for-tat strategy 10 Two-part tariff 二、简答题：（共 10 分） 1 A village is located next to 1000 acres of prime grazing land. The village presently owns the land and allows all residents to graze cows freely. Some members of the village council have suggested that the land is being overgrazed. Is this likely to be true? These same members have also suggested that the village should either require grazers to purchase an annual permit, or sell off the land to the grazers. Would either of these be a good idea? 得分 阅卷教师