The United States places a limit on the number of cars that can be brought into the country for sale. What is this an example of?

During the year a country's income was $6.0 trillion and its consumption was $5.5 trillion. At the start of the year its wealth was $30.0 trillion. The country's wealth at the end of the year was

A) $36.0 trillion. B) $35.5 trillion. C) $30.0 trillion. D) $6.0 trillion. E) $30.5 trillion.

In bargaining between a bureau and the legislature over a budget, the legislature decides to purchase a certain amount of output at certain price and negotiates both simultaneously. This gives the bureau the opportunity to _____

a. minimize their effort b. extract all the legislature's consumer surplus from the bureau's output c. maximize the bureau's profits d. maximize the budget's producer surplus by extracting from the legislature large rents