Mitigating simultaneity bias in seaport efficiency measurement

IF 6.3 1区工程技术 Q1 ECONOMICS

Transportation Research Part A-Policy and Practice Pub Date : 2025-02-01 DOI:10.1016/j.tra.2024.104333

Kenneth Løvold Rødseth , Timo Kuosmanen , Rasmus Bøgh Holmen

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引用次数: 0

Abstract

Seaport efficiency measurement is one of the most popular topics in maritime economics. Studies within this research area have not paid attention to the well-known simultaneity bias in productivity and efficiency measurement that can lead to inconsistent estimates of best practices. This paper investigates simultaneity in seaport efficiency measurement and proposes a novel strategy to mitigate the bias by exploiting the relationship between port efficiency and choice, another key topic within the maritime literature. A non-parametric framework for joint estimation of production and control functions subject to shape constraints is further developed. Contrary to comparable methods for controlling for simultaneity, the new method does not require multiple steps and rigorous assumptions about the error term to retrieve the port production function. An empirical investigation is provided for the eight largest container ports in Norway to showcase presence and mitigation of simultaneity bias in efficiency analysis of seaports.

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来源期刊

Transportation Research Part A-Policy and Practice 工程技术-运输科技

CiteScore

13.20

自引率

7.80%

发文量

257

审稿时长

9.8 months

期刊介绍： Transportation Research: Part A contains papers of general interest in all passenger and freight transportation modes: policy analysis, formulation and evaluation; planning; interaction with the political, socioeconomic and physical environment; design, management and evaluation of transportation systems. Topics are approached from any discipline or perspective: economics, engineering, sociology, psychology, etc. Case studies, survey and expository papers are included, as are articles which contribute to unification of the field, or to an understanding of the comparative aspects of different systems. Papers which assess the scope for technological innovation within a social or political framework are also published. The journal is international, and places equal emphasis on the problems of industrialized and non-industrialized regions. Part A''s aims and scope are complementary to Transportation Research Part B: Methodological, Part C: Emerging Technologies and Part D: Transport and Environment. Part E: Logistics and Transportation Review. Part F: Traffic Psychology and Behaviour. The complete set forms the most cohesive and comprehensive reference of current research in transportation science.