Suppose that each of 8,000 firms in a perfectly competitive industry produces 1,000 units of a good and maximizes profits when the price of the good is $10
If there is a permanent increase in demand, in the short run each firm produces ________ 1,000 units and in the long run the number of firms is ________ 8,000. A) more than; more than
B) less than; more than
C) less than; less than
D) more than; less than
E) exactly; more than
A
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Answer the following statement(s) true (T) or false (F)
1. The use of uniform emissions standards on mobile sources generates a cost-effective solution. 2. According to a study conducted by the National Academy of Sciences, a uniform standard imposed on motor vehicles would be more cost-effective than a two-tiered standard. 3. Plug-in hybrids and hybrid vehicles are examples of partial zero-emission vehicles (PZEVs). 4. U.S. policy on mobile sources imposes more stringent controls on new vehicles, creating a bias against newer, and hence cleaner, motor vehicles.
An important environmental objective is to preserve the variety of distinct species of animals and plants and the variety of ecosystems they inhabit. This is known as
a. biodiversity c. sustainable development b. risk assessment d. pollution prevention
What does the fact that U.S. students are falling behind other nations' students in math and science have to do with economic growth?
A) Nothing. People in the United States just don't like to fall behind in anything as a matter of pride. B) If U.S. students don't excel in math and science, the nation will see fewer plays written and fewer pieces of music composed. C) Better technology, a key to economic growth, depends largely on math and science skills. D) Math and science skills don't foster economic growth, but it takes math skills to calculate a nation's rate of economic growth.
Fixed inputs are those whose
a. quantity changes as the level of output changes b. costs are irreversible c. quantity remains constant regardless of the level of output d. quantity determines the level of profit e. appearance was damaged while being transported, but has been fixed