Columbia subject headings:
Income distribution.
Labor productivity.
Technological innovations--Economic aspects.
Harvard subject headings:
Income distribution--United States.
Information technology--Economic aspects--United States
Labor productivity--United States.
Technological innovations--Economic aspects--United States
Princeton subject headings:
Income distribution--United States.
Information technology--Economic aspects--United States.
Labor productivity--United States.
Technological innovations--Economic aspects--United States.