【单选题】Which of the following statements is true? a. Increases in a country's endowments of land, labor, and capital will lead to long-run economic growth . b. Improvements in the technology used in producti...
【单选题】The Phillips curve is an extension of the model of aggregate supply and aggregate demand because, in the short run, an increase in aggregate demand increases prices and
【单选题】Last year, the world demand curve for copper shifted rightward due to continued economic growth in China and other emerging economies. Also, the supply curve for copper shifted leftward due to strikes...
A.
higher equilibrium copper prices and unambiguously lower quantities.
B.
higher equilibrium copper prices and unambiguously higher quantities.
C.
higher equilibrium copper prices and either higher or lower quantities.
D.
lower equilibrium copper prices and either higher or lower quantities.