The environmental problems of China:
a. were caused by a lack of central planning in the economy.
b. were caused by the burning of low-quality, high-sulfur coal.
c. were caused by a lack of pollution controls.
d. All of the above are correct.
d
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Use the following graph of the demand for noodles to answer the question below.
Refer to the three demand curves for noodles. Which of the following would shift the demand for noodles from D1 to D2?
A. an increase in the number of buyers of noodles B. People hear that eating noodles can have negative health effects. C. a decrease in the price of noodles D. a decrease in the number of buyers of noodles
Suppose the United States spends more on foreign goods and services than foreigners spend on our goods and services and the United States sells no foreign assets. Then the
A) United States must borrow an amount equal to national saving. B) United States must borrow an amount equal to imports minus exports. C) rest of the world may or may not finance the U.S. trade deficit. D) United States must borrow an amount equal to consumption expenditure plus investment.
Which of the following most clearly illustrates the concept of "derived demand"?
a. An increase in the price of steak causes the demand for poultry to increase b. An increase in the demand for new houses leads to an increase in the demand for construction workers. c. An increase in consumer income leads to an increase in the demand for services provided by the government. d. An increase in the demand for new cars causes the demand for used automobiles to rise.
Which of the following theories would suggest that attending school does not improve productivity but that high-ability people are more likely to stay in school?
a. physical-capital theory b. human-capital theory c. signaling theory d. neoclassical theory