Firm Size, Technical Change, and Wages in the Pork Sector, 1990-2005
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This study investigates worker shares of the returns to scale and returns to technology adoption
on U.S. hog farms. The wage analysis controls for a matching process by which workers are
linked to farms of different sizes and technology uses. Using four surveys of employees on hog
farms collected in 1990, 1995, 2000, and 2005, we find persistent large wage premiums are
paid to workers on larger farms and on technologically advanced farms that remain large and
statistically significant even after controlling for differences in observable worker attributes and
in the observed sorting process of workers across farms.