Trade Union: A trade union is an association of wage earners for the purpose of maintaining and improving the conditions of their working lives. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostGlobalization Next PostRevolutionary Unions