Which business practice of the 1990s changed U.S. production?
The practice of outsourcing--using cheap foreign labor in place of expensive domestic workers--has been around forever (though the word itself only dates to 1981), but it caught on in a big way in the 1990s. In 1989, Peter Drucker--a business writer for The Wall Street Journal--began trumpeting the practice as the wave of the future. Bill Clinton, during his 1996 re-election campaign, was asked at a campaign stop how he planned to end the practice, and he responded that he couldn't stop it.
For what it's worth, I am writing this article from South Korea, so it is outsourced, in a manner of speaking.