a. Suppose a closed economy has national income of $10 million, Investment of \$2 mil million, GDP deflator of 120 and a balanced budget. Find the sum of consumption and government purchases (C + G) . b. Suppose the country of Malawi does not trade with any other country. In the long-run, its income is $20 billion, its consumption expenditure is $4 billion, its net tax revenue is $5 billion and has a budget deficit of \$2 billion. What is the value of its investment?