Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper reports individual-level estimates of union/nonunion wage differentials using coverage information from the New Earnings Survey Panel Dataset. There are no existing panel estimates for the United Kingdom. Of a number of findings, the more important are that fixed-effects estimates are about one-half the equivalent cross-section estimates; the biggest differentials are for 'company/district/local only' agreements; and the differential is countercyclical. Also the effect of the 1979-82 recession was probably dampened by antiunion legislation and the upward trend between 1975 and 1995 is due to the decentralization of collective pay bargaining. Copyright 1998 by Blackwell Publishing Ltd