Swaffield, Joanna K - In: Oxford Bulletin of Economics and Statistics 63 (2001) 4, pp. 437-57
This paper compares estimates of the union wage effect using cross-section and panel estimators for male manual full-time and female employees using data from the British Household Panel Survey, 1991-97. A comparison of cross-section and panel estimates suggests that unobserved heterogeneity...