M. Gisser et A. Davila, DO FARM-WORKERS EARN LESS - AN ANALYSIS OF THE FARM-LABOR PROBLEM, American journal of agricultural economics, 80(4), 1998, pp. 669-682
During the four decades extending from 1950 to 1960, the ratio of the
farm to nonfarm wage fluctuated between 0.45 and 0.55. We employ the O
axaca technique and the Public Use Microdata Sample of the 1990 Census
to decompose the farm/nonfarm wage differential. We also use the Amer
ican Chamber of Commerce Research Association (ACCRA) cost-of-living d
ata to measure the impact of the farm/nonfarm cost-of-living index on
the wage gap. First, we find that the observed wage gap is reduced by
half when nominal wages are deflated by the (ACCRA) cost-of-living ind
ex. Second, by applying the Oaxaca method separately to a subsample of
young employees and a subsample of old employees we find that while f
or the subsample of employees younger than thirty-five years the real
wage gap practically vanishes, the gap for the subsample of employees
who are thirty-five years of age and over is higher than that of the t
otal sample. This finding lends strong support to the hypothesis that
between 1950 and 1970 the process of farm out-migration was positively
selective.