4. Use the data from Table 6.1 to calculate annual growth rates of GDP per capita for each country listed for the years 1870, 1950, and 2016. [Note: The annual growth rate z will satisfy the equation (1 + z)66 = GDP2016/GDP1950.

To solve this equation for z use a calculator to extract the nth root of a value.] Comment on the differences between the two periods 1870–1950 and 1950–2016. You will find that Germany and Japan, two countries that suffered extensive damage during World War II, had the two highest growth rates after 1950. Give some reasons, based on the analysis of the Solow model, for their particularly fast growth during this period.