The quantity of domestically produced goods and services that households, firms, the government, and customers abroad want to buy at each price level is shown on the

Z is a normal good. The equilibrium price and equilibrium quantity of Z in the year 2011 was $25 and 60 units, respectively

It was seen that, in 2014, the equilibrium price of Z had decreased to $15, but the equilibrium quantity had increased to 70 units. Other things remaining the same, which of the following could explain this change? A) Shift of the supply curve of Z to the left B) Shift of the demand curve for Z to the right C) Shift of the supply curve of Z to the right D) Shift of the demand curve for Z to the left

The "gang system" is an example of:

a. specialization and division of labor. b. diminishing marginal product. c. the envelope theorem. d. Gresham's law.