________ is the study of economic aggregates and the economy as a whole

Suppose the market demand for milk is Qd = 150 - 5P. Additionally, suppose that a dairy's variable costs are VC = 2Q2 (where Q is the number of gallons of milk produced each day), its marginal cost is MC = 4Q and there is an avoidable fixed cost of $50 per day. In the long run there is free entry into the market. How many active firms are in the market?

A. 50 B. 5 C. 10 D. 20

Medicaid payment rates to physicians are significantly below those paid by private insurers. Using the results of a Merritt Hawkins (2014) survey, how do these lower payment rates affect physician access for enrollees?

a. Metropolitan areas with fewer than average number of physicians per capita are more likely to accept new Medicaid patients. b. Despite low payment rates, access to physicians is relatively good across the country. c. Overall, almost 75 percent of physicians accept new Medicaid patients into their practices. d. The average number of days it takes to get an appointment to see a physician is lower where there are more physicians per capita. e. The greater the supply of physicians, the more likely they are to accept new Medicaid patients