The following list contains items that are related to aggregate demand and/or aggregate supply.1)Government Spending 2)Consumer Expectations 3)Degree of Excess capacity 4)Personal Income Tax Rates 5)Productivity 6)National Income Abroad 7)Business Taxes 8)Domestic Resource Availability 9)Price of Imported Products 10)Profit Expectations on Investments Refer to the above list. A change in which factor is most likely to change both aggregate demand and aggregate supply?

A professor posts his course syllabi and past exams on the Internet. From the economic point of view, the professor's behavior

A) demonstrates the arrogance of the professor. B) better informs prospective students. C) is a costless use of scarce resources, because it avoids paper, ink, and mimeos. D) is irrational.

Refer to Figure 29-1. The French fall in love with California wines and triple their purchases of this beverage. Assuming all else remains constant, this would be represented as a movement from

A) A to D. B) A to B. C) B to A. D) B to C. E) C to D.