Economics is an empirical science, which means that economists
A) must use laboratory experiments to test their theories.
B) evaluate a model or theory by whether its assumptions are consistent with the real world.
C) try to prove their models are true by referring to logic.
D) look for evidence to determine whether the model is useful or not.
D
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Which of the following would cause a decrease in the equilibrium price and an increase in the equilibrium quantity of salmon?
A) a decrease in demand and a decrease in supply B) an increase in supply C) a decrease in demand and an increase in supply D) an increase in supply and an increase in demand greater than the increase in supply
Refer to Figure 4-21. The figure above represents demand and supply in the market for cigarettes. Use the diagram to answer the following questions
a. How much is the government tax on each pack of cigarettes? b. What portion of the unit tax is paid by consumers? c. What portion of the unit tax is paid by producers? d. What is the quantity sold after the imposition of the tax? e. What is the after-tax revenue per pack received by producers? f. What is the total tax revenue collected by the government? g. What is the value of the excess burden of the tax? h. Is this cigarette tax efficient?