Take the controls of the economic machine.

Every pilot reads the instruments before touching the controls. Learn the three gauges the whole world watches — output, unemployment and inflation — how each is actually measured, how they move together, and why headlines get them wrong.

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   Level 1 GDP: The Size of the Economy ★★★ ◆
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   Level 2 Unemployment: Counting the Idle ★★★ ◆ Needs: L01
3. 🔒
   Level 3 Inflation: The Price of Everything ★★★ ◆ Needs: L02
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   Level 4 · BRIEFING Dashboard Briefing ★★★ ◆◆ Needs: L03

Over months and quarters, demand runs the show. Build the goods market and meet the multiplier, see how the central bank sets the interest rate, then bolt the two markets together into IS-LM — the machine economists still reach for first when the economy lurches.

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   Level 5 The Goods Market & the Multiplier ★★★ ◆◆ Needs: L04
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   Level 6 Money & the Interest Rate ★★★ ◆◆ Needs: L05
3. 🔒
   Level 7 IS-LM: The Machine Assembled ★★★ ◆◆◆ Needs: L06
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   Level 8 Banks, Risk & the Extended IS-LM ★★★ ◆◆◆ Needs: L07
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   Level 9 · BRIEFING Short-Run Briefing ★★★ ◆◆◆ Needs: L08

Push output above its potential and something has to give: wages, then prices. Meet the labor market that anchors the natural rate of unemployment, the Phillips curve that links slack to inflation, and the IS-LM-PC model that shows how — and how painfully — the economy returns to normal.

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   Level 10 The Labor Market & the Natural Rate ★★★ ◆◆◆ Needs: L09
2. 🔒
   Level 11 The Phillips Curve ★★★ ◆◆◆ Needs: L10
3. 🔒
   Level 12 IS-LM-PC: The Road Back to Normal ★★★ ◆◆◆◆ Needs: L11
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   Level 13 · BRIEFING Medium-Run Briefing ★★★ ◆◆◆◆ Needs: L12

In the long run, business cycles are ripples on a rising tide. Discover the facts of growth — why living standards multiplied tenfold in a century — then build the Solow model to see what saving can and cannot buy, and why technology is the only engine that never stalls.

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   Level 14 The Facts of Growth ★★★ ◆◆ Needs: L13
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   Level 15 Saving, Capital & the Solow Model ★★★ ◆◆◆◆ Needs: L14
3. 🔒
   Level 16 Technological Progress & Growth ★★★ ◆◆◆ Needs: L15
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   Level 17 · BRIEFING Long-Run Briefing ★★★ ◆◆◆◆ Needs: L16

No economy is an island. Open the borders and every answer changes: exchange rates join interest rates on the dashboard, imports leak from the multiplier, and monetary policy gains a powerful new channel. Learn interest parity, the open-economy IS-LM, and why fixed exchange rates can end in tears.

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   Level 18 Openness & Interest Parity ★★★ ◆◆◆ Needs: L17
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   Level 19 The Open Goods Market ★★★ ◆◆◆ Needs: L18
3. 🔒
   Level 20 Mundell–Fleming: Policy Goes Global ★★★ ◆◆◆◆ Needs: L19
4. 🔒
   Level 21 Exchange Rate Regimes ★★★ ◆◆◆◆ Needs: L20
5. 🔒 👑
   Level 22 · BRIEFING Open-Economy Briefing ★★★ ◆◆◆◆ Needs: L21

Now you take the controls. See how expectations make policy a conversation with the future, how government debt snowballs or melts depending on r versus g, how modern central banks actually operate — targets, rules, the zero lower bound, QE — and what to do when the machine truly breaks.

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   Level 23 Expectations: The Economy Looks Ahead ★★★ ◆◆◆◆ Needs: L22
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   Level 24 Fiscal Policy & the Government Debt ★★★ ◆◆◆◆ Needs: L23
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   Level 25 Monetary Policy: Rules, Targets & the ZLB ★★★ ◆◆◆◆ Needs: L24
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   Level 26 Crises: When the Machine Breaks ★★★ ◆◆◆◆◆ Needs: L25
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   Level 27 · BRIEFING The Chief Economist's Final ★★★ ◆◆◆◆◆ Needs: L26