Purpose: This study aims to investigate the intricate relationship between the volume of exports (Y) and freight turnover on railways (X) through a paired linear regression model. The purpose is to discern the quantitative impact of railway freight turnover on a nation's export volumes and offer insights for policymakers and stakeholders in the transportation and trade sectors. Design/Methodology/Approach: A quantitative research design is employed, utilizing historical data spanning from 2000 to 2022. The chosen methodology involves the estimation of a paired linear regression model using the method of least squares. Statistical significance is tested through the coefficient of determination, Fisher's F-test, and an examination of heteroskedasticity. Elasticity analysis, rank correlation, and graphical assessments of residuals provide a comprehensive understanding of the relationship. Findings: The research reveals a strong and statistically significant positive correlation (r = 0.92) between export volumes and railway freight turnover. The regression model, validated through multiple tests, explains 84.72% of the variability in export volumes. Economic interpretation indicates that a one-unit increase in railway freight turnover leads to a substantial average increase of 1627720.728 units in export volumes. The absence of heteroskedasticity reinforces the robustness of the model.
This article briefly analyzes freight transportation tariffs and their features in railway transport. The initial changes in Uzbek Railways' tariff system are described below.
The proposed methodology for improving freight delivery enables the calculation of all types of shipments and reduces delivery time. It defines the decision-making process during the execution of various operations at stations. A model based on mathematical modeling of the technological process dependency is proposed for making effective decisions. To verify the methodology for standardizing transportation duration, it is necessary to organize the process considering the delay of each technological operation. The main reason for applying standards is to accelerate cargo delivery and ensure the proper distribution of penalties among railways for late delivery. In turn, this will help develop contractual relationships with clients and improve the overall system.
Today in Uzbekistan, as in many countries of the world, great attention is paid to the development of transport logistics. Geographical location of the Republic of Uzbekistan in the center of Central Asia allows the country to effectively use the potential of transport corridors, passing through this region
The role of logistics in world trade and economic development is studied in the article. Logistics plays an important role in facilitating trade, reducing costs and promoting economic growth. By effectively managing transportation, warehousing, inventory, and information systems, logistics ensures the seamless flow of goods, services, and information throughout the supply chain. In the article, the literature of economists on the subject is studied, and a conclusion is formed at the end.
