ECONOMETRIC MODELS FOR EVALUATING INVESTMENT PROJECTS AND ENSURING THE DEBT SUSTAINABILITY OF RAILWAY TRANSPORT ENTERPRISES

Authors

  • Samandarov Doniyorbek Odilbekovich

DOI:

https://doi.org/10.5281/zenodo.22091799

Abstract

This article presents an integrated econometric framework for assessing debt sustainability
and investment efficiency at Uzbekistan Railways Joint Stock Company, which is undergoing structural
transformation under Resolution No. PQ-329 in the context of comprehensive reforms in the railway sector.
The impact of CapEx (capital expenditures), exchange rates, and tariff changes on the financial stability of the
enterprise was analyzed using ARDL and dynamic DSCR (debt service coverage ratio) stress-testing models.
The results show that unsecured external debt under macroeconomic shocks may reduce the DSCR below
the safety threshold. Targeted optimization of operating costs helps mitigate the risk of default. Based on the
obtained results, a strategic policy for capital allocation to railway infrastructure was proposed.

Keywords

railway transport economics, debt service coverage ratio, econometric modeling, investment project evaluation, debt sustainability, capital expenditures, ARDL model, structural decomposition.

Author Biography

Samandarov Doniyorbek Odilbekovich

Head of the Personnel Advanced Training and Retraining Center Personnel Training
Institution of “Temiryo‘linfratuzilma” Joint-Stock Company

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Published

2026-08-01

How to Cite

Samandarov , D. (2026). ECONOMETRIC MODELS FOR EVALUATING INVESTMENT PROJECTS AND ENSURING THE DEBT SUSTAINABILITY OF RAILWAY TRANSPORT ENTERPRISES. ECONOSCITECH INTEGRATION, 3(8), 408–413. https://doi.org/10.5281/zenodo.22091799
Vol. 3 No. 8 (2026): Social, economic, scientific and technical academic journal