EMPIRICAL VALIDATION OF DEVELOPMENT PATTERNS IN RAILWAY MANUFACTURING ENTERPRISES: DERIVED DEMAND, LEARNING EFFECTS IN SERIAL PRODUCTION, AND CUSTOMER DEPENDENCE

Authors

  • Shohruhmirza Abdirashid o‘g‘li Mannonov Independent Researcher, Tashkent State University of Economics Doctor of Philosophy (PhD) in Economics

DOI:

https://doi.org/10.5281/zenodo.23467099

Abstract

This article proposes a methodological framework for empirically testing the development patterns of enterprises engaged in railway rolling stock manufacturing and overhaul. Five hypotheses concerning the distinction between nominal growth and actual economic development, the existence of derived demand, the amplification of demand fluctuations through the ordering system, learning effects in serial production, and customer dependence are formulated as testable propositions with explicitly defined decision criteria. The proposed framework incorporates an order volatility amplification coefficient, a two-factor unit cost model that distinguishes learning effects from the allocation of fixed costs, and a threshold panel regression specification. The framework is illustrated using simulated time series for three hypothetical enterprises operating under different ordering regimes. The simulation results indicate that differences in ordering arrangements, rather than final demand alone, can influence order volatility, the realization of learning effects, and the responsiveness of profitability to changes in operating conditions.

Keywords

railway engineering, rolling stock overhaul, derived demand, bullwhip effect, volatility amplification coefficient, learning curve, cost elasticity, customer dependence, threshold effect

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Published

2026-10-01

How to Cite

Mannonov, S. A. o‘g‘li. (2026). EMPIRICAL VALIDATION OF DEVELOPMENT PATTERNS IN RAILWAY MANUFACTURING ENTERPRISES: DERIVED DEMAND, LEARNING EFFECTS IN SERIAL PRODUCTION, AND CUSTOMER DEPENDENCE. Innovation Science and Technology, 2(10), 343–350. https://doi.org/10.5281/zenodo.23467099
Vol. 2 No. 10 (2026): Innovation Science and Technology