A model of International Trade with R&D Investment under Monopolistic Competition: Equilibrium in Autarky Situation

A model of International Trade with R&D Investment under Monopolistic Competition: Equilibrium in Autarky Situation Full article

Journal

Journal of Applied and Industrial Mathematics
ISSN: 1990-4789 , E-ISSN: 1990-4797

Output data

Year: 2025, Volume: 19, Number: 2, Pages: 212-229 Pages count : 18 DOI: 10.1134/s1990478925020024

Funding (1)

Sobolev Institute of Mathematics

FWNF-2022-0019

The article studies a model of international trade between two countries under monopolistic competition of producers. The utility functions of consumers are additively separable. Transport costs are of the iceberg type. The production cost function is nonlinear: marginal costs are a decreasing function of R&D investments. The article considers market equilibrium in autarky situation, when transport costs are so high that international trade ceases. Comparative statics is carried out on transport costs of equilibrium variables (individual consumption, size and mass of firms, and prices), as well as social welfare.

Bykadorov I.A.
A model of International Trade with R&D Investment under Monopolistic Competition: Equilibrium in Autarky Situation
Journal of Applied and Industrial Mathematics. 2025. V.19. N2. P.212-229. DOI: 10.1134/s1990478925020024 OpenAlex

Быкадоров И.А.
Модель международной торговли с инвестициями в НИОКР при монополистической конкуренции: равновесие в ситуации автаркии
Дискретный анализ и исследование операций. 2025. Т.32. №2. С.5–29. DOI: 10.33048/daio.2025.32.819 РИНЦ

Submitted:	Nov 25, 2024
Accepted:	Mar 22, 2025
Published print:	Apr 1, 2026
Published online:	Apr 1, 2026

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