Which of the following could shift the demand for a good to the right?
a.a decrease in income, if the good is a normal good
b.an increase in the price of a complementary good
c.an expectation of a future price increase
d.a decrease in the good's price, if the good is normal
e.an increase in the good's price, if the good is inferior

I thought it was D. lower price more likely someone would be buy more.

Which of the following is true of an increase in a federal government budget surplus?
a.When the surplus increases, revenues rise less than expenditures.
b.The unemployment rate falls as a result of an increasing surplus.
c.The aggregate demand curve shifts rightward as a result of an increasing surplus.
d.Such an increase in the surplus might close an expansionary gap.
e.The natural rate of unemployment increases as a result of an increasing surplus.

I think the answer is C.

Suppose that the economy is in equilibrium with the government budget is in deficit and with saving is less than investment. According to the circular flow model,
a.imports must equal exports
b.imports must be less than exports
c.imports could be less than or equal to exports
d.it is impossible to determine anything about imports and exports with the given information
e.imports must exceed exports

Answer D?

The law of comparative advantage states that the person who should produce a good is the person who
a.has the most desire for that good
b.will produce that good using the most expensive resources
c.has the lowest opportunity cost of producing that good
d.has produced that good in the past
e.can produce that good using the fewest resources

Answer C.

Which of the following is true of an increase in a federal government budget surplus?
a. When the surplus increases, revenues rise less than expenditures.
b. The unemployment rate falls as a result of an increasing surplus.
c. The aggregate demand curve shifts rightward as a result of an increasing surplus.
d. Such an increase in the surplus might close an expansionary gap.
e. The natural rate of unemployment increases as a result of an increasing surplus.