Income Income tax 14 Taxation 6 Renta 5 Wages 4 Wealth 4 Households 3 Competition 2 Customer 2 Economist 2 Education 2 Employment 2 Entrepreneurship 2 Institution 2 Labor 2 Political science 2 Profession 2 Social science 2 Technology 2 Accounting 1 Accuracy and precision 1 Advertising 1 Affirmative action 1 African Americans 1 Agrarsektor 1 Agricultural 1 Agricultural Household Decisions 1 Agriculture & related industries 1 Allocation 1 Americans 1