What’s changing in Southeast Asia’s markets

Our research starts with the source closest to the fact being examined. We prioritize laws, regulations, ministry notices, agency guidance and official statistics, consulting original-language documents rather than relying on translations or summaries. We examine what each policy changes, when it takes effect, who it applies to and how it affects investment or market access. Corporate filings and announcements provide additional evidence on ownership, project status and developments on the ground.

Where primary sources are unavailable or incomplete, particularly when assessing project delays, closures or problems with policy implementation, we use credible reporting and seek independent confirmation where possible. We search broadly to identify developments that might otherwise be missed, then verify specific claims against the best available evidence. Automated tools help us find and organize information, while our analysts assess the sources and determine what the evidence supports.

Investment approvals, pledges, realised investment, balance-of-payments FDI flows, FDI stock and project counts measure different things. Before comparing countries or years, we check definitions and coverage, including whether figures are preliminary or final, how countries and sectors are classified, and whether investment is attributed to the immediate investor or the ultimate owner. Where definitions differ, we flag the differences rather than combine incompatible figures.

For any figure we calculate, we retain the original data series and denominator so the calculation can be checked. We also distinguish observed patterns from evidence of causation. An increase in investment following a policy change, for example, does not establish that the policy caused it.

We make gaps in the evidence explicit. When ownership cannot be fully traced, we identify what remains unknown. We flag missing or inconsistent sector classifications rather than make unsupported assumptions. Where approved and realised investment cannot be matched at the project level, we report that limitation rather than imply a relationship the data cannot establish. Each finding is linked to its source and date so readers can check the evidence behind it.