Why do species inhabit particular areas, and how are they prevented from dispersing beyond their range limits? Numerous ecological interactions serve to maintain the geographic boundaries of species.

Landier, Augustin, Vinay Nair, and Julie Wulf. "Trade-offs in Staying Close: Corporate Decision Making and Geographic Dispersion." Review of Financial Studies 22, no. 3 (March 2009): 1119–1148.