This research collection illustrates the wide range of methodologies and methods available for the evaluation of public programs. All these methods address the benefits of the programs and most compare the benefits to costs, but the types of benefits and their measures vary greatly across the...

John Scott develops, describes, and uses new primary data about US industrial firms' research and development (R&D) investments to create innovative products and processes that provide goods and services without the by-product of pollution. New knowledge about environmental R&D is provided by...