BYAMBAJAV, E.-A.; ARTSKHUU, U. DETERMINING THE COMPETITIVENESS OF ECONOMIC SECTORS USING AN INDEX METHOD BASED ON PRINCIPAL COMPONENT ANALYSIS. Journal of Business and Innovation (Бизнес & Инноваци), [S. l.], v. 12, n. 1, p. 30–47, 2026. DOI: 10.22353/jbai.2026120103. Disponível em: https://journal.num.edu.mn/BusinessAndInnovation/article/view/11006. Acesso em: 13 jun. 2026.