Geographically concentrated industry activity creates pools of skilled labor and specialized suppliers, and increases opportunities for knowledge spillovers. The strategic value of these agglomeration economies may vary by firm, depending upon the relative value of each economy, and upon firm...

Global economic transactions such as foreign direct investment must extend over an institutional abyss between the jurisdiction, and therefore protection, of the states involved. Intergovernmental organizations (IGOs), whose members are states, represent an important attempt to span this abyss....

Researchers studying innovation increasingly use indicators based on patent citations. However, it is well known that not all citations originate from applicants--patent examiners contribute to citations listed in issued patents--and that this could complicate interpretation of findings in this...