G M Al Mamun, T. and Ehsanullah 2025. ADJUSTMENT COST ON INVESTMENT AND UNDER-UTILIZATION OF MAXIMUM INSTALLED CAPACITY IN SOUTH KOREAN BUSINESS CYCLE - A BAYESIAN NEW KEYNESIAN MODEL. ECONOMICS - INNOVATIVE AND ECONOMICS RESEARCH JOURNAL. 13, 1 (Jan. 2025), 1–24. DOI:https://doi.org/10.2478/eoik-2025-0026.