Grant, E. Kenneth; Swidinsky, Robert; Vanderkamp, John - In: Industrial and Labor Relations Review 41 (1987) 1, pp. 93-107
Using extensive Canadian longitudinal data from the years 1969-71, the authors estimate union-nonunion wage differentials of 12-14% for 1969 and 13-16% for 1970. These estimates are not adjusted for selectivity because three different tests to identify selectivity yield no evidence of...