Temasek Market Sizing Questions: Framework & Example
Temasek market sizing questions appear in the superday cases and interviews for the 2027 intake: "How big is Southeast Asia's e-commerce market?" You are not expected to know the answer — you are expected to build it from scratch, logically, in minutes. Without a framework, even a correct-sounding number is worthless. Here is the framework and a worked example.
What Is a Temasek Market Sizing Question?
A Temasek market sizing question asks you to estimate a market's size — revenue, units, or users — using only logic and basic assumptions, usually with no calculator and minutes of thinking time. You clarify scope, lay out structure, make explicit assumptions, and drive to a number. The final figure matters far less than the path: assessors want structured, defensible reasoning — the same skill used to sanity-check an investment thesis.
What Temasek Market Sizing Questions Assess
Market sizing assesses structured thinking under ambiguity: structure (logical components before calculating?), assumptions (explicit and reasonable?), arithmetic (clean round-number math under pressure?), and sanity-checking (did you reality-check the result?). Blurting a number fails; building top-down from population, segmenting by drivers, and benchmarking passes — even if the final number is off by 2x.
The Market Sizing Framework (With Example)
Use this four-step framework every time. Step 1: Clarify — define the market (geography, product, B2B vs. B2C, revenue vs. units). Step 2: Structure top-down — start from a known base (population, households, GDP) and segment down. Step 3: Assume explicitly — state every number you invent and keep the math round. Step 4: Sanity-check — compare against a known reference.
Example: Singapore ride-hailing revenue. Population ~6M → ~4.5M adults; 40% regular users = 1.8M. At 3 rides/week × 52 weeks ≈ 150 rides/year each → ~270M rides. Average fare S$12 → ~S$3.2B gross bookings. State assumptions aloud, flag uncertainties (frequency, fare), offer a range. Complete answer.
A Number Without a Framework Is Just Guessing
The Temasek market sizing trap is elegant: the question feels casual, so candidates answer casually — and a casual number with no structure is an instant fail. Interviewers have a mental checklist (structure, assumptions, math, sanity check), and they tick it while you talk. If your answer has no framework, there is nothing to tick. This is a trainable skill with a fixed method; walking in without it is choosing to fail a question you could have aced.
FAQ
How long should a market sizing answer take? 3–5 minutes: 30 seconds to clarify, 1 minute to structure, 2 minutes to calculate, 30 seconds to sanity-check.
Top-down or bottom-up? Top-down (population → segments) is the default and usually cleaner. Use bottom-up (unit economics × locations) when the market is concentrated, e.g., number of MRT stations.
What if my final number is wrong? It almost certainly will be, and that is fine — you are graded on structure and assumptions, not accuracy. Never invent false precision; round numbers signal confidence.
Where do market sizing questions appear? Superday case exercises and panel interviews in the later rounds. For the 2027 intake timeline, check Temasek's official careers page. Our 2027 Temasek Online Assessment & Video Interview Answers covers the exact estimation and case formats used in the process.
Preparing for Temasek's Technical - estimation? Our 2027 Temasek Online Assessment & Video Interview Answers has the exact questions and answers — $79 one-time, instant download.
