Pephitasya Juliana and Siradjuddin 2026. Analysis of the Role of Input Markets and Output Markets in Increasing Productivity, Competitiveness, and Economic Welfare: Perspectives of Conventional Economics and Islamic Economics. Al-Kharaj: Journal of Islamic Economic and Business. 8, 3 (Jul. 2026). DOI:https://doi.org/10.24256/kharaj.v8i3.11358.