Michigan ECON 401: Intermediate Microeconomic Theory
ECON 401 is the calculus-based intermediate micro course required for the economics major: consumer theory, producer theory, equilibrium, and market failure, built with real optimization math. It's the course where the major's analytical bar gets set, and a common admissions checkpoint for econ-adjacent programs.
Fennie is independent and not affiliated with University of Michigan. This is an unofficial study guide.
What makes it hard
The jump from ECON 101's graphs to formal optimization catches students who expected more of the same. Lagrangians, comparative statics, and multi-part derivations are the working language. The exams are long problem sets under time, and students whose calculus is rusty spend the course fighting the math instead of learning the economics.
What you'll cover
- • Consumer theory and utility maximization
- • Demand and comparative statics
- • Producer theory and cost minimization
- • Competitive equilibrium and welfare
- • Monopoly and market power
- • Externalities and public goods
The ECON 401 study guide
How to study for Michigan ECON 401, step by step.
- 1
Sharpen the calculus before the semester
Partial derivatives and constrained optimization are ECON 401's working tools. A pre-semester review of multivariable basics converts the course from a math fight into an economics course.
- 2
Re-derive every model from scratch
Don't memorize results. Reproduce the utility-maximization and cost-minimization derivations on blank paper until the method is yours. Exams present variations, and the method is what transfers.
- 3
Translate between math and economics constantly
After every derivation, state in one sentence what it means economically. The exams reward students who can move both directions: setting up math from a story and reading meaning from math.
- 4
Work long problems under time
Exam problems are multi-part derivations with the parts feeding each other. Practice complete past problems under a timer, since partial-credit strategy and pacing are skills of their own.
Today
Today's ECON 401 plan
What a Fennie Daily Plan looks like for ECON 401. Yours is built from your own syllabus and adapts every day to your deadlines and progress.
First plan free, no card required. Fennie is independent and unaffiliated with your school.
FAQ
Is ECON 401 hard at Michigan?
It's the analytical step-up of the econ major, and the calculus is real. Students with rusty math feel it immediately. The economics itself builds sensibly from intro micro; the difficulty is doing it in formal optimization language under exam time.
How much calculus does ECON 401 use?
Partial derivatives and constrained optimization throughout. It's the working language of the course, not an occasional tool. Michigan requires calculus beyond MATH 115 for a reason; reviewing multivariable basics before the term is the highest-yield prep available.
How do I prepare for ECON 401 exams?
Re-derive the core models from blank paper rather than reviewing finished derivations, and practice complete multi-part past problems under a timer. The exams test method on variations you haven't seen, so derivation fluency beats memorized results.
More Michigan courses
ECON 101: Principles of Economics I
ECON 101 is Michigan's introductory microeconomics course: supply and demand, consumer and producer theory, market structures, and welfare analysis. It's required for the economics major, the Ross pre-admit path, and counts toward several distribution requirements, so the lectures are enormous.
ECON 102: Principles of Economics II
ECON 102 is Michigan's introductory macroeconomics course: GDP, inflation, unemployment, monetary and fiscal policy, growth, and international basics. It follows ECON 101 for econ majors and Ross hopefuls, in the same large-lecture, curved multiple-choice format.