Labor unions History 86 Labor movement 47 Industrial relations 38 Political activity 28 Employees 19 Working class 18 more ... International labor activities 17 Organizing 16 Collective bargaining 13 Globalization 13 Politics and government 13 Economic aspects 12 Social conditions 11 Labor 8 Employment 7 Labor market 7 Labor policy 7 Social aspects 7 Management 6 Strikes and lockouts 6 Women labor union members 6 African Americans 5 Agricultural laborers 5 Automobile industry workers 5 Clothing workers 5 Coal miners 5 Foreign workers 5 Government policy 5 Labor disputes 5 less ...