Mississippi State University
Date of Degree
Graduate Thesis - Open Access
Civil Engineering (Transportation Engineering)
Master of Science (M.S.)
James Worth Bagley College of Engineering
Department of Civil and Environmental Engineering
This study reviews the competition and productivity of the U.S. freight transportation industry for the past 41 years. This study investigated the trends of HHI market concentration index values and labor productivity values of rail and truck sectors and tried to find any relationships between the two values in the separate periods before and after the abolishment of the ICC. This study also investigated how the existence of a regulatory body impacted productivity of the freight transportation industry by using a Cobb Douglas production function on annual financial statement data in the U.S. stock exchange market. This study found that: while the truck sector became more competitive after the abolishment of the ICC, the rail sector became less competitive, both sectors had a strong positive correlation between HHI and labor productivity, and the ICC’s abolishment resulted in positive changes of total factor productivity for the truck sector only.
Shin, Seungjae, "The effect of four decades of deregulation on competition and productivity of the U.S. freight transportation industry" (2023). Theses and Dissertations. 5844.