This study examines how differences in state intervention are associated with foreign direct investment (FDI) inflows in Indonesia and the Philippines from 2000 to 2019. Using a comparative case study design, the study analyzes national-level policy instruments including foundational investment laws, Foreign Investment Negative Lists (FINL) and Special Economic Zones
(SEZs), alongside quantitative data on the sectoral distribution of FDI. Despite similar developmental constraints as middle-income Southeast Asian economies, the two countries exhibited divergent FDI trajectories. Indonesia attracted larger, more stable inflows concentrated in manufacturing and increasingly diversified into mining, electricity, and infrastructure. The Philippines received smaller, more volatile FDI concentrated in manufacturing and Information Technology-Business Process Outsourcing (IT-BPO) services. The findings suggest that these differences are not simply a function of how open each economy is to foreign investment, but rather how openness is structured through specific policy instruments. Indonesia employed a tiered, conditional approach with calibrated ownership caps and incentives linked to developmental objectives, while the Philippines adopted a more exportfocused, enclave-based approach shaped by constitutional ownership caps. The study contributes to the literature on the role of the state in development by moving beyond FDI volume to focus on how states structure investment policies and how these can be associated with sectoral investment patterns in emerging market economies.
