Most industrialized countries subsidize private sector R&D, even under some circumstances when the firm is owned by foreigners. The present paper, using a simple theoretical analysis of a monopoly firm selling only to the U.S. market, argues that such subsidies are welfare enhancing--as long, of...

The "voltage effect" is defined as the tendency for a program's efficacy to change when it is scaled up, which in most cases results in the absolute size of a program's treatment effects to diminish when the program is scaled. Understanding the scaling problem and taking steps to diminish...