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HEC Montréal Year 2 Economics Exam Practice: 9 Solved Problems (Micro, Macro, Statistics)

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9 exam-style economics problems at the intermediate level, each with a full step-by-step solution, in the style of HEC Montréal Year 2 economics. What's inside (7 pages, PDF): • Microeconomics (problems 1-3): Choosing inputs, Cost function, Wage change • Macroeconomics (problems 4-6): Steady state, Check the flows, Better matching • Statistics (problems 7-9): Total sales, Average spending, Sample size Every solution shows each intermediate value, so you can check your own work line by line. Ideal for midterm and final exam review. Unofficial practice modeled on public course descriptions for this level. Not affiliated with or endorsed by HEC Montréal. These are not past exams.

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Exam prep · Year 2 HEC Montréal style · intermediate level




9 problems
micro, macro, s
tatistics




HEC Montréal
Year 2 practice Full solutions
every step worked o
ut

Intermediate micro, intermediate macro and probability: choice, strategy,
growth, policy and inference.




Unofficial practice based on public course descriptions for this level. Not affiliated with or
endorsed by HEC Montréal.

, Micro · Problems 1 to 3 HEC Montréal · Year 2 style


Cost minimization
Problem 1 Problem 2 Problem 3
Choosing inputs Cost function Wage change
q = L0.5K0.5, w = $4, r = $16. Same technology and prices. The wage rises to $16, r stays $16.

1. Optimal K ÷ L? 1. Total cost C(q)? 1. New L and K for q = 100?
2. L and K to make q = 100? 2. AC and MC? 2. New minimum cost?
3. Minimum cost? 3. Returns to scale?




Unofficial practice · Solutions on the next page · HEC Montréal Year 2 style · 02

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October 9, 2026
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