a) Why do economists make a distinction between nominal GDP and real GDP? (2 Marks) b) How does the growth rate of real GDP contribute to an improved standard of living? What are some limitations of GDP as a measure of wellbeing? (4 marks) c) If the real GDP of Auslan increased from $35,000 per capita in 1980 to $70,000 in 2020, what is the approximate rate of growth? What is one policy the government can implement to improve productivity in the economy