What is the impact of foreign direct investment (FDI) on development? The answer is important for the lives of millions--if not billions--of workers, families, and communities in the developing world. The answer is crucial for policymakers in developing and developed countries, and in multilateral agencies. This volume gathers together the cutting edge of new research on FDI and host country economic performance and presents the most sophisticated critiques of current and past inquiries. It probes the limits of what can be determined from available evidence and from innovative investigative techniques. In addition, the book presents new results, concludes with an analysis of the implications for contemporary policy debates, and proposes new avenues for future research.