假设龙虾名声继续提高，需求曲线从C=0.401-0.0064F变为C=0.50-0.0064F。这一需求的转变会如何影

响龙虾的实际捕捉和有效率的捕捉，以及共同进入的社会成本？(提示:利用例于中给出的边际社会成本曲线和边际私人成本曲线。)

Reconsider the common resource problem as given by Example 18. 7. Suppose that crawfish popularity continues to increase, and that he demand curve shifts from C = 0.401 - 0.0064F to C =0.50 - 0. 0064F. How does this shift in demand affect the actual crawfish catch, the efficient catch, and the social cost of common access？ (lint: Use the marginal social cost and private cost curves given in the example. )