The gap between population and spend
Singapore and Malaysia together hold close to 8% of ASEAN’s population. Their combined share of the region’s online retail sales runs closer to a third. That gap is large enough to change how a regional entry plan should be built, not just how it should be described.
The e-Conomy SEA 2025 report, published by Google, Temasek and Bain in November 2025, puts Southeast Asia’s digital economy on track to exceed USD 300 billion in GMV for the year. Momentum Works separately tracked platform ecommerce GMV at USD 157.6 billion in 2025, up 22.8% from the prior year. Neither report breaks the region down by population share directly, but both confirm the underlying scale: a market where two comparatively small, high income countries carry outsized commercial weight.
Singapore and Malaysia also lead the region in GMV per capita. That ranking tracks their GDP per capita position closely. Higher income per person correlates with higher online spend per person, which is not a surprising finding on its own. What it changes is which variable should anchor a market sizing model.
Why population is the wrong primary filter
A regional budget model built primarily around population size will overweight Indonesia, Vietnam and the Philippines relative to their near term revenue potential. It will underweight Singapore and Malaysia relative to theirs. Population predicts long run addressable market. It does not predict near term revenue density, infrastructure maturity or the speed at which a brand can reach unit economics.
Spend density is a better predictor of near term revenue. Infrastructure maturity, payment rails, logistics networks, platform seller tooling, determines how fast that spend density converts into completed transactions. Both variables favor Singapore and Malaysia over the region’s larger, lower income markets in the near term.
This does not make Indonesia or Vietnam less important. It changes the order in which a brand should approach them. A team building toward five or six ASEAN markets over several years still needs the large population markets in its plan. It should not open with them as the primary revenue base in year one.
What this means for entry sequencing
Treat Singapore and Malaysia as proof of concept markets. A premium positioning strategy, a new product category, or an unfamiliar operating model can be tested in these two markets at lower absolute spend, since the buyer base is smaller in headcount but denser in spend per person. A brand that proves category fit and unit economics in Singapore and Malaysia carries a stronger case into a larger, lower density market than one testing cold.
Reweight any regional budget model still using population as the primary sizing variable. GMV per capita, not headcount, should set the first pass allocation across markets. Spend density and infrastructure maturity have predicted revenue outcomes across at least one full reporting cycle now. The e-Conomy SEA and Momentum Works numbers both point the same direction.
The conditional recommendation
For a brand entering ASEAN for the first time with a limited budget, Singapore and Malaysia are the correct opening markets when the product category rewards higher spend per buyer (beauty, premium lifestyle, electronics accessories) and when the team needs a fast read on unit economics before committing larger budget elsewhere. Indonesia or Vietnam become the correct opening choice instead when the strategy depends on volume and platform concentration more than spend density, since both markets offer a more legible two platform structure at a fraction of the per acquisition cost. Match the market to the metric the strategy actually depends on, not to the market with the largest headline population.
Research Ledger (4 claims)
| Entity | Claim | Source | Status |
|---|---|---|---|
| Singapore and Malaysia | Combined population is roughly 8% of ASEAN’s total, combined online retail sales are close to a third of the region’s total | Cross-checked against multiple secondary SEA ecommerce data summaries citing e-Conomy SEA and World Bank population figures | INFERRED (directional gap confirmed across sources, exact percentage not independently recomputed from primary population tables) |
| e-Conomy SEA 2025 | Published by Google, Temasek and Bain, 10th edition, released 11 November 2025, projects the region’s digital economy GMV above USD 300 billion in 2025 | bain.com/insights/e-conomy-sea-2025, temasek.com newsroom | VERIFIED |
| Singapore and Malaysia | Lead ASEAN in GMV per capita, a pattern that mirrors their relative GDP per capita ranking | sellercraft.co Malaysia and Singapore ecommerce GMV analysis, cross-referenced against e-Conomy SEA figures | VERIFIED |
| Southeast Asia platform ecommerce | Reached USD 157.6 billion in GMV in 2025, up 22.8% year on year | Momentum Works, “Ecommerce in Southeast Asia 2026” report summary (thelowdown.momentum.asia) | VERIFIED |