China's trend growth rate of real GDP per person was 2.2 percent a year before 1980 and 8.7 percent a year after 1980. In the year to August 2009, China's output increased by 11.3 percent. (Source : World Economic Outlook and FT.com, September 14,2009). Answer the following questions according to this information:

a) Distinguish between a rise in China's economic growth rate and a temporary cyclical expansion.

b) How long, at the current growth rate, will it take for China to double its real GDP per person?.

c) What happen to the real GDP per person in 2020?