答案和详解如下： Q1. Which of the following is most accurate regarding labor productivity curves? Growth in capital per labor hour causes: A) movements along a productivity curve; technological growth causes productivity curves to shift. B) productivity curves to shift; technological growth causes movement along productivity curves. C) and technological growth cause productivity curves to shift. Correct answer is A) The productivity curve results when labor productivity (real gross domestic product (GDP) per labor hour) is plotted against capital per labor hour at a given state of technology. A productivity curve shows how real GDP per labor hour changes as capital per labor hour changes. Growth in capital per labor hour causes movements along a productivity curve. Technological growth causes productivity curves to shift. Q2. Labor productivity may be decomposed into which of the following two factors? A) Growth in both physical capital and human capital per labor hour. B) Growth in physical capital per labor hour and technological change. C) Growth in physical capital per labor hour and growth in real interest rates. Correct answer is B) Changes in the growth rate of labor productivity may be decomposed into two components: (1) the growth in physical capital per labor hour, and (2) technological change. The one third rule is useful in this decomposition. Q3. Which of the following is least likely to be observed when examining a labor productivity curve? A) The change in real GDP per labor hour as capital per hour changes, holding technology constant. B) The change in real GDP per labor hour as technology changes, holding capital per labor hour constant. C) The rate of change in technology as labor increases. Correct answer is C) Labor productivity curves show: (1) the change if real GDP per labor hour as capital per labor hour changes, at a given state of technology, and (2) the change in real GDP per labor hour increases as the state of technology changes, at a given level of capital per labor hour. There is no way to directly observe the rate of change in technology from a labor productivity curve Q4. Which of the following is least likely to be considered necessary to sustain long-term economic growth? A) Positive population growth. B) Investment in human capital. C) Discovery of new technologies. Correct answer is A) For economic growth to continue over the long term, societies must have incentives that encourage the pursuit of savings and investment in new capital, investment in human capital, and discovery of new technologies. Q5. Technological progress is most extensively applied to which of the following? A) The developments in human capital. B) Improvements in the productivity of physical capital. C) The creation of investment opportunities and savings incentives. Correct answer is B) While the most all-encompassing and powerful technologies are the development of human capital (written and spoken language, science, and mathematics) most technological progress involves improvements in the productivity of physical capital. | 
发表于 2009-3-30 15:46
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