Which of the following contributed to the positive output ratio experienced in the 1960s?

The figure above illustrates the marginal private cost and the marginal social cost to the city of Seattle for each rock concert that is offered. It also illustrates the marginal private benefit. There is no external benefit

The efficient number of concerts in Seattle is A) 0. B) 5. C) 10. D) 20. E) 15.

Each of the following contributes to income inequality except:

A. differences in ability and training. B. differences in job tastes. C. differences in wealth ownership. D. government transfers.