This was tax money the government collected, but did not use.

VOA: special.2010.05.27

Before 1986, the tax law allowed use of DPPs as a tax loss device.

在1986年之前,税法允许DPP作为一种避税工具

耶鲁公开课 - 金融市场课程节选

"And we will use the savings to give tax cuts to companies that are investing in research and development here at home, so we can jump-start job creation, foster innovation, and enhance America's competitiveness."

VOA: standard.2009.05.04