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Mathematica Policy Research
Mathematica Policy Research is a policy research organization with offices in Princeton, New Jersey; Cambridge, Massachusetts; Chicago, Illinois; Washington, DC; Ann Arbor, Michigan; and Oakland, California.〔()〕 Mathematica has more than 1,000 employees and conducts program evaluation, policy research and interpretation, survey design and data collection, and performance measurement and data management. Mathematica works across the United States and in countries around the world for clients that include federal agencies, state and local governments, foundations, universities, and private-sector and international groups. It is not affiliated with the computer software Mathematica.
==History==
In 1968, Mathematica conducted the first social policy experiment in the United States, the New Jersey Income Maintenance Experiment (an experimental study of a negative income tax), to test ways of encouraging low-income individuals to work.〔(【引用サイトリンク】title=NIT Archive )〕 In 1975, it was incorporated under its present name, and in 1986, the firm became employee-owned. The company became known for its large-scale random assignment evaluations of policies and programs such as abstinence education and Job Corps.〔()〕
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