In some countries, there has been a significant reduction in the number of trade union members. Who are the members of trade unions?

3.4.1 definition of a trade union

3.4.2 the role of trade unions in the economy (Including engaging in collective bargaining on wages, working hours and working conditions; protecting employment; and influencing government policy.)

3.4.3 the advantages and disadvantages of trade union activity (Factors influencing the strength of trade unions. From the viewpoint of workers, firms and the government. )