@inbook {13097,
	title = {On the Divergence in Unionism Among Developed Countries},
	booktitle = {Labour Relations and Economic Performance},
	year = {1990},
	note = {Proceedings of a conference held by the International Economic Association
in Venice, Italy, 1988. Also published in Spanish in Econom{\'\i}a y Trabajo, S. Ruesga (ed) 
(Madrid: Ediciones Pir{\'a}mide, 1992).},
	publisher = {MacMillan},
	organization = {MacMillan},
	address = {Hampshire, England},
	author = {Richard Freeman}
}
