Global warming refers to the effect of global pollutants such as carbon dioxide on climates on the earth. Climate-induced changes in temperatures affect, among other things, agriculture
Which of the following is a reason why policymakers are still debating if this problem should be addressed and how it should be addressed?
A) There is much disagreement about all aspects of the problem: how much carbon emissions contribute to damage from climate change which in turn determines the benefits from reduction, and what methods to use which in turn determines the cost of reduction.
B) Scientists agree about the damage caused by carbon emissions but disagree about the methods of reducing emissions.
C) The marginal cost of reducing carbon emissions is known with certainly but the marginal benefit from reduction is not known with certainty.
D) The marginal cost of reducing carbon emissions is not known with certainly but the marginal benefit from reduction is known with certainty.
A
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If the prices of goods and services were expressed in terms of carved wooden beads, then the carved wooden beads would be serving as a
A) store of value. B) medium of exchange. C) mechanism for transforming present purchases into future purchases. D) unit of account.
Which of the following would increase the demand for U.S. dollars in the foreign exchange market?
a. the spending of U.S. tourists in France b. the purchase of Japanese automobiles by American consumers c. the sale of U.S. computer equipment to a Canadian buyer d. the purchase of a Mexican shoe factory by a U.S. investor