Originally published in 1981, this book explains the factors which precipitated and effected changes in the major dimensions of union activity in Britain since 1960. The authors use a series of comparative case studies to examine change in the government, growth, mergers, character and bargaining structures of British unions. The central theme of the book is that unions are far freer to determine their own behaviour than was commonly supposed. In examining changes in unions, the authors develop concepts and terms which provide new insights into union behaviour.