The market demand curve for a particular good
A) is the horizontal sum of all individual demand curves for the good.
B) may be less than an individual demand curve for the good.
C) may or may not show a direct relationship between price and quantity demanded.
D) will not be affected by any of the determinants of individual demand.
A
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When buyers and sellers optimize in a perfectly competitive market, ________
A) social surplus is maximized B) social surplus is minimized C) only consumer surplus is maximized D) only consumer surplus is minimized
The signaling effect of foreign exchange intervention
A) never has any effect on exchange rates. B) can alter the market's view of exchange rates independent from the stance of monetary and fiscal policies. C) cannot cause an immediate exchange rate change when bonds denominated in different currencies are perfect substitutes. D) never leads to actual changes in monetary or fiscal policy. E) can alter the market's view of future monetary policies and cause an immediate exchange rate change.
Let W be the included exogenous variables in a regression function that also has endogenous regressors (X). The W variables can
A) be control variables B) have the property E(ui|Wi) = 0 C) make an instrument uncorrelated with u D) all of the above
Which of the following is likely to result in a larger equilibrium quantity exchanged? a. An increase in both demand and supply
b. A decrease in both demand and supply. c. An increase in demand and a decrease in supply. d. A decrease in demand and an increase in supply.