Columbia subject headings:
Economic assistance, Domestic--United States.
Poor--United States.
Unemployment--Effect of wages on--United States.
United States--Economic policy.
Wages--Effect of technological innovations on--United States.
Harvard subject headings:
Princeton subject headings:
Economic assistance, Domestic--United States.
Poor--United States.
Unemployment--Effect of wages on--United States.
United States--Economic policy.
Wages--Effect of technological innovations on--United States.