Taxation Econometric models 28 Economic aspects 12 Mathematical models 8 Corporations 7 Income tax 6 Law and legislation 5 المزيد ... Capital gains tax 4 International business enterprises 4 Investments, American 4 Saving and investment 4 Spendings tax 4 States 4 Alcohol use 3 Capital investments 3 Expenditures, Public 3 Fiscal policy 3 Pensions 3 Prices 3 Tax shelters 3 Abusive parents 2 Beer 2 Child abuse 2 Cigarettes 2 Congresses 2 Debts, Public 2 Dividends 2 Effect of taxation on 2 Finance 2 Impôt 2 أقل ...