Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper reports individual‐level estimates of union/non‐union 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 (i) fixed‐effects estimates are about one‐half the equivalent cross‐section estimates; (ii) the biggest differentials are for ‘company/district/local only’ agreements; and (iii) the differential is counter‐cyclical. Also the effect of the 1979/82 recession was probably dampened by anti‐union legislation, and the upward trend between 1975 and 1995 is due to the decentralization of collective pay bargaining.