UVA Professor Federico Ciliberto, UVA PhD Candidate Emily E. Cook, and UVA alumnus and current UNC Professor Jonathan W. Williams recently published “Network Structure and Consolidation in the U.S. Airline Industry, 1990-2015” in the Review of Industrial Organization. The authors study the effect of consolidation on airline network connectivity using three measures of centrality from graph theory: Degree; Closeness; and Betweenness.