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Regions for case solvers: the big markets of the world
Lesson 4 of 7 Math checked Facts checked against sources on 1 October 2026 14 min

Southeast Asia for case solvers

Indonesia, Vietnam, Thailand, Malaysia, the Philippines and Singapore: six very different markets, the export and AI boom, recent reforms, and what they mean in a case.

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Key takeaways

  • Southeast Asia is six very different markets, not one: about USD 4.1 trillion of GDP and 612 million people across Indonesia, Vietnam, Thailand, Malaysia, the Philippines and Singapore in 2025.
  • Indonesia: the region's largest economy and population (284.4 million), with mining and commodity processing as well as a large home consumer market spread across many islands.
  • Vietnam: the fastest grower (8.0 percent in 2025) and a major assembly base for electronics, clothing and furniture sold worldwide; exports equal 98.2 percent of GDP.
  • Thailand: slower growth (2.4 percent in 2025) and an older population (16.0 percent aged 65 or over); strong in cars, electronics, food and tourism.

Key idea

Southeast Asia is six very different markets, not one: about USD 4.1 trillion of GDP and 612 million people across Indonesia, Vietnam, Thailand, Malaysia, the Philippines and Singapore in 2025. Vietnam, Malaysia and Thailand live on exports; Indonesia and the Philippines are big home consumer markets; Singapore is a rich hub.

Size and growth

Six Southeast Asian economies(see each column)
Six Southeast Asian economies
EconomyGDP 2025 (USD billions)Real growth 2025 (percent)Real growth 2026, projected (percent)GDP per person 2025 (USD)Population 2025 (millions)Inflation 2025 (percent)
Indonesia1,4465.155,080284.41.9
Vietnam49487.14,830102.33.3
Thailand5772.41.58,06071.6-0.1
Malaysia4725.24.713,95033.91.4
Philippines4874.44.14,270114.11.7
Singapore60453.599,3706.10.9

Source: IMF World Economic Outlook database, April 2026 (2025 values are IMF estimates; 2026 values are projections), checked 2026-10-01. GDP in current US dollars at market exchange rates.

So-what

Income per person ranges from about USD 4,300 in the Philippines to about USD 99,000 in Singapore, more than 20 times as much.

In its July 2026 update the IMF raised its 2026 growth forecasts for Vietnam (to 7.5 percent), Thailand (to 1.9 percent, helped by emergency government spending) and kept Malaysia at 4.7 percent, helped by technology exports and data centres linked to the global boom in artificial intelligence (AI). Thailand and Malaysia were among the four largest net exporters of AI-related hardware whose growth beat forecasts in early 2026.

Structure and people in Southeast Asia, 2025 (World Bank)(percent)
Structure and people in Southeast Asia, 2025 (World Bank)
EconomyServices (percent of GDP)Manufacturing (percent of GDP)Exports (percent of GDP)Urban population (percent)Aged 65 and over (percent)
Indonesia43.919.122.859.47.5
Vietnam42.724.598.238.89.5
Thailand60.223.771.162.816
Malaysia54.822.17177.48
Philippines64.415.326.655.85.7
Singapore71.617.4177.910014.2

Source: World Bank World Development Indicators, 2025 values, checked 2026-10-01. Exports can be larger than GDP (Singapore) because exports count the full value of goods passing through, while GDP counts only the value added at home.

So-what

Vietnam, Thailand, Malaysia and Singapore sell a large share of what they make abroad; Indonesia and the Philippines depend far more on their own consumers.

Each market in brief

  • Indonesia: the region's largest economy and population (284.4 million), with mining and commodity processing as well as a large home consumer market spread across many islands. Its new sovereign wealth fund, Danantara, was launched on 24 February 2025. Regulators include Bank Indonesia (central bank) and the Financial Services Authority (OJK).
  • Vietnam: the fastest grower (8.0 percent in 2025) and a major assembly base for electronics, clothing and furniture sold worldwide; exports equal 98.2 percent of GDP. It merged its 63 provinces and cities into 34 from 1 July 2025. Central bank: the State Bank of Vietnam.
  • Thailand: slower growth (2.4 percent in 2025) and an older population (16.0 percent aged 65 or over); strong in cars, electronics, food and tourism. Central bank: the Bank of Thailand.
  • Malaysia: upper-middle income (about USD 13,950 per person), with electronics, data centres, palm oil and gas. It widened its sales and service tax from 1 July 2025. Central bank: Bank Negara Malaysia.
  • Philippines: young (27.1 percent under 15) and services-led (64.4 percent of GDP), with business process outsourcing and money sent home by Filipinos working abroad supporting spending. Central bank: Bangko Sentral ng Pilipinas.
  • Singapore: a rich city-state (about USD 99,370 per person) and a base for regional headquarters, finance, shipping and trading. GST is 9 percent. Central bank and financial regulator: the Monetary Authority of Singapore.

What changed in 2024 to 2026

  • The AI hardware boom lifted exporters (IMF, July 2026), while the 2026 energy shock raised costs for the region's energy importers.
  • US tariffs changed several times; under the July 2026 Section 301 action, goods from Indonesia and Malaysia face 10 percent, the lower of the two rates, because they ban or committed to ban imports made with forced labour.
  • State reorganisation: Indonesia launched Danantara (February 2025) and Vietnam cut its provinces from 63 to 34 (July 2025).

What this means in a case

  • Never size "Southeast Asia" with one average. Income per person differs more than 20 times across these six, so price, pack size and channel differ by country.
  • For export-led economies (Vietnam, Malaysia, Thailand), the case often turns on the global technology cycle and on US and Chinese trade rules: check tariff rates by country of origin and where the competition makes the same goods.
  • In island and rural markets (Indonesia, the Philippines), distribution is costly: count the cost per shop or per delivery, not only the size of the market. Singapore is often the regional base, not the main market.
Timed math drill

GDP per person in 2025 was about USD 99,370 in Singapore and USD 4,270 in the Philippines (IMF). How many times larger is Singapore's figure?

Check your understanding

Which of these is the best first step for a consumer brand planning a "Southeast Asia" launch?

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