1. Which of the following is not a measure of productivity?

A. GDP growth rate

B. GDP per worker

C. GDP per hour worked

2. Which of the following statements about economic growth is true? A. economic growth was faster in Middle Ages than after the Industrial Revolution

B. economic growth cannot happen because of the Malthusian trap

C. economic growth is a modern phenomenon and it started in the 18th century

D. economic growth will inevitably slowdown in the future

3. Which of the following cannot be explained by the Solow model?

A. the growth rate of population

B. the relationship between the saving rate and the capital-labor ratio

C. consumption per capita

D. the effect of the growth rate of TFP on output per worker