Consider a closed economy consisting of four industries, as depicted in the table. Closed economy with 4 industrien, all values in currency units (CU) Industry 1 Industry 2 Industry 3 Industry 4 100 200 300 400 Revenue Expenditures Salary 50 Purchases in industry 1 D Purchases In Industry 20 Purchases In Industry 3 40 Purchases in industry 4 10 Profits b Value-added, industry 1: Value-added, industry 2 Value-added, industry 3: Value-added, industry 4: 2(a) Calculate GDP according to the production approach. GDP: 100 p p GDP p b 100 2(b) Calculate GDP according to the expenditure approach Value of final goods and services, industry 1: Value of final goods and services, industry 2 Value of final goods and services, industry 3: Value of final goods and services, industry 4: 50 P 100 110 40 30 10 50 260 0 60 Maximum marks: 2.5 2(c) Calculate GDP according to the income approach. Total labor income: Total capital income: GDP: Maximum marks: 2(d) Which industry uses no intermediate goods? Industry Which industry produces a pure intermediate good, i.e., a good that is not sold to final consumers? Industry Which industry produces a pure final good, i.e., a good that is not sold to other industries? Industry