Postprint version. Published in International Review of Sociology, Volume 2, Issue 3, November 1, 1991, pages 149-173.
Copyright © 1991 Taylor & Francis. This is an electronic version of an article published in International Review of Sociology.
The definitive version is available at http://dx.doi.org/10.1080/03906701.1991.9971101.
Social and Behavioral Sciences