at both high and low ends of the labor market, both legal and illegal—was an important element in achieving the productivity and prosperity of the decade. Immigration also contributed to the economic transformation required for the United States to compete in a global economy.

The plantation economy in the south produced a. equal opportunity for all whites and no illiteracy. b. low profits despite the enslavement of a great number of people. c. great profits and developed great educational institutions. d. great profits at the expense of cultural development and equal opportunity.