论文信息 - Analytical Studies in Transport Economics: Network effects and the measurement of returns to scale and density for U.S. railroads - 字舞流文

Analytical Studies in Transport Economics: Network effects and the measurement of returns to scale and density for U.S. railroads

Michael W. Tretheway | Douglas W. Caves | Laurits R. Christensen | Michael W. Tretheway | Robert J. Windle | Robert J. Windle | L. R. Christensen | R. Windle | D. Caves | M. Tretheway