"By investigating an exemplar headquarters economy--Minneapolis-St. Paul--this volume demonstrates that the talent pool (managers), its movement among companies and industries in a region (mobility), and the of its inflow and outflow from a region (migration), can create a virtuous cycle that...

This paper reports a statistical study of the temporal causal relationships between expansion of a firm's multinational structure and the firm's growth in spending of R & D and advertising. We find that firms increase R & D expenditures after expanding their multinational structure, but not vice...