ECONOMIC ACTIVITY.6 THE SCIENCE OF ECONOMICS.8 DIFFERENT ECONOMIC SYSTEMS.10 THE LIMITS ON ECONOMIC SYSTEMS.12 CENTRAL CONTROL OF THE ECONOMY.16 MIXED ECONOMIES.18 REVISION AND CONCLUSION.22 UTILITY AND PRICES.32 SYPPLY AND DEMAND.34 SOME ECONOMIC LAWS.38 LABOUR AND CARITAL.42 MARKETS AND MONOPOLIES.46 THE OPEN MARKET.48 MONEY AND BANKING.54