The Economic Way of Thinking
Like Duolingo, but for The Economic Way of Thinking. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
26 levels across 4 sections, about 52 minutes end to end, roughly 10 days at five minutes a day. It moves through The Logic of Choice, How Markets Breathe, The Machinery of Nations, and The Limits of Markets. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android

Key ideas in The Economic Way of Thinking
- Marginal cost is the additional expense of producing one more unit or hour
- Sunk costs are past outlays that cannot be recovered by any current choice
- Marginal revenue is the specific income gained from that final increment
- Efficient decisions focus only on future costs and future benefits
- Rational actors proceed only if marginal benefit exceeds marginal cost
- The 'sunk cost fallacy' leads to throwing good money after bad
- Applying marginal analysis to business production decisions
- Identifying and ignoring sunk costs in future-facing decisions
- Scarcity forces a tradeoff where choosing one path excludes another
- Opportunity cost is the value of the single best alternative foregone
- Cost is not just money spent, but the utility of the next best option
- Marginal utility is the satisfaction gained from one additional unit
- The progression of diminishing marginal utility
- Comparative advantage is based on relative efficiency, not raw speed
- Calculating opportunity cost in a resource-constrained scenario
- Mutually beneficial trade occurs even if one party is 'better' at everything
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Economic Way of Thinking the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Imagine you run a late-night bakery. If you decide to stay open for just one more hour, what term describes the extra electricity and wages you'll pay for that specific hour?
Get it right to open this lesson and 25 more in the app.
Where The Economic Way of Thinking takes you
Move beyond basic supply and demand to understand the hidden forces shaping your choices, the global market, and the logic of human behavior.
- 1
The Logic of Choice
- Thinking at the Margin
- Incentives and Their Consequences
- 2
How Markets Breathe
- The Power of Information
- Strategic Interactions
- 3
The Machinery of Nations
- Money, Interest, and Central Banks
- Fiscal Policy and Growth
- 4
The Limits of Markets
- Market Failures and Externalities
- The Human Element
4 sections · 8 units · 26 levels. Built to play, not to enroll.
You pick the voice
The Economic Way of Thinking is taught in the The Storyteller style: every lesson is a story. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Business on Tomo
How the Economy Actually Works
Stop viewing the economy as a confusing machine and start seeing it as the sum of human choices. Learn the hidden logic behind prices, trade, and why the world looks the way it does.
The Fast Track to Extreme Wealth
Skip the slow lane and learn the high-leverage strategies used by the world's youngest billionaires. This course focuses exclusively on the fastest paths to massive capital accumulation and scale.
Grow Your Money in the Market
Stop watching from the sidelines and start building your own portfolio. Learn how to pick companies you believe in and navigate the Egyptian Exchange with confidence.
How Money Grows: The Logic of Investing
Transform from a saver into an investor by understanding how capital works. This course covers everything from your first dollar to building a resilient, professional-grade portfolio.
Strategic Investing: Risk, Value, and Portfolio Construction
Move beyond basic stock picking to master the mechanics of valuation, risk management, and institutional-grade portfolio construction.
Investing for Canadians
Navigate the unique landscape of Canadian finance, from maximizing your TFSA to building a low-cost portfolio that beats the big banks.
Start The Economic Way of Thinking today.
Download Tomo, search The Economic Way of Thinking, and play your first lesson in under a minute.