We document the distribution and changes in the distribution of earnin
gs in Finland from 1971 to 1990, using a large representative set of d
ata, collected from the population censuses. Earnings inequality dropp
ed dramatically between 1971 and 1975, and continued to decrease until
1985. From 1985 to 1990 there was a substantial increase in the inequ
ality of earnings, comparable in magnitude to that found in the U.K an
d U.S. While earlier shifts in the inequality of earnings could be acc
ounted for by changes in observed characteristics, the large increase
at the end of the 1980s occurs almost completely in the dispersion of
earnings within cells of observationally equivalent wage earners. Afte
r considering and discarding a number of possible explanations for the
changes, we find that changes in labour market institutions are consi
stent with the observed changes on the inequality of earnings. (C) 199
7 Elsevier Science B.V.