Urban highway congestion: An economic analysis of second-best congestion pricing schemes. Nan. Liu 10027/16792 https://indigo.uic.edu/articles/thesis/Urban_highway_congestion_An_economic_analysis_of_second-best_congestion_pricing_schemes_/10896830 Urban highway congestion: An economic analysis of second-best congestion pricing schemes. 2014-03-18 00:00:00 Economics, General.