In the long run, all costs are ______________.
A. fixed
B. variable
C. equal to zero
D. None of the choices are correct.
B. variable
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When existing firms leave a perfectly competitive industry, ________
A) the equilibrium price decreases, while the equilibrium quantity increases B) the equilibrium price increases, while the equilibrium quantity decreases C) both the equilibrium price and quantity increase D) both the equilibrium price and quantity decrease
Suppose the world economy is divided into two halves. In Region A, all economies experience a decrease in desired saving, while desired saving is unchanged in Region B
If there is open trade and perfect capital mobility across the two regions, which of the following is true? A) Actual saving in Region B has increased. B) Actual investment in Region A has increased. C) Region A's imports from Region B have decreased. D) all of the above E) none of the above
Supply curves that are horizontal are called perfectly elastic and have an infinite elasticity, whereas supply curves that are vertical are called perfectly inelastic and have a zero elasticity
a. True b. False Indicate whether the statement is true or false
The exchange rate between yen and dollars at one point in 2010 was 83 yen per dollar. If a Big Mac, fries, and a Coke cost $3.91 in San Francisco, how much should the same order cost in yen in Osaka?
A. 0.03 B. 325 C. 392 D. 422