Network Position And Competitive Spillovers: Evidence From Articulation Nodes In Store Competition Networks

This decision support system study examines how network positions shape competitive spillovers from store openings and closures.We build a store competition network (22,422 stores) using drivingdistance thresholds, update it annually for entry and exit, and identify articulation nodes (cut vertices) whose removal disconnects the graph.Using store and year fixed effects, we estimate how incumbent versus rival openings and closures affect extant store performance, and whether effects are amplified