Media type: E-Article Title: Unions, industrial concentration and wages: A re-examination Contributor: Simpson, Wayne Published: Informa UK Limited, 1986 Published in: Applied Economics, 18 (1986) 3, Seite 305-317 Language: English DOI: 10.1080/00036848600000031 ISSN: 0003-6846; 1466-4283 Origination: Footnote: