FREE-RESPONSE QUESTIONS (a) Briefly explain what real GDP is and how it is used to calculate real GDP per capita. (b) Assume the country of Vinland has a population of 100 and real gross domestic product in 2020 was $550,000 and the country of Taraq has a population of 180 and real gross domestic product in 2020 was $630,000. Which country's real gross domestic product per capita is greater? (c) List and explain the four factors that contribute to long-term economic growth. (d) In what way does savings factor into economic growth? (e) Explain how aggregate output and aggregate employment are related