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William R. Tash

William R. Tash is President of the Horizon Institute.

Titles by This Author

A Primer

This basic text presents a step-by-step impact evaluation methodology that can be used by students and administrators without prior exposure to the field. The treatment is nontechnical and sparing in its use of statistical technique and economic terminology, but it covers the major components required to perform the cost-benefit analyses that underlie reliable policy decisions. The book will be as useful to those who are called on to read evaluations as to those who prepare them.