Saving and investment Capital 20 Economic conditions 18 Finance 15 Economic policy 10 History 7 Mathematical models 7 Capital investments 5 Consumption (Economics) 5 Taxation 5 Banks and banking 4 Congresses 4 Corporations 4 Econometric models 4 Economic development 4 Inflation (Finance) 4 Monetary policy 4 Business cycles 3 Capitalism 3 Consumers 3 Equilibrium (Economics) 3 Finance, Personal 3 Housing 3 Imperialism 3 Income 3 Income distribution 3 Investments 3 Investments, Foreign 3 Macroeconomics 3 Money 3