Show all your calculations 1. a) In the year 1990, real GDP $5,200,000 and the population was 147 million. In the year 2001, real GDP was $7,600,000 and the population was 137 million. Calculate the growth in real GDP per capita between 199 and 2001. b) If the unemployment rate falls below the natural rate, what concerns might you have regarding the economy?. c) Under what situation would be a drop in the unemployment rate be considered a sign of economic trouble