01
Measure
Start with the identity
GDP, money, debt, and external accounts are accounting systems before they become opinions.
Interactive macro hub
Simulators macro systems you can pressure-test.
A route map for Macro by Mark's calculators and teaching simulators. Model graphs stay in Models; this page keeps the applied interactives for GDP, money supply, cycles, policy, growth, and external balances in one place.
Public hub
anyone can browse the simulator map
Starter execution
simulators run on concept and policy pages
Separate models
formal graphs remain in Models
Node 01GDPNode 02M2Node 03SlackNode 04RateNode 05FX
Public
hub is open to all users
Starter
execution routes require Starter
Models
graphs stay in Models
Story flow
Every simulator follows the same discipline.
02
Shock
Move the constrained margin
The simulators make the binding margin visible: reserves, slack, capacity, rates, capital, or FX pressure.
03
Read
Separate the channel from the headline
The same inflation rate, deficit, or money-growth number can mean different things once the mechanism is exposed.
Channels
Simulator map
The lanes mirror the macro curriculum: identities, monetary plumbing, cyclical diagnosis, policy decisions, and open-economy balance sheets.
2
National accounts
Production, income, expenditure, and cycle timing.
11Money and banking
Aggregates, settlement, central-bank plumbing, reserves, and liquidity stress.
2Cycles, prices, and labor
Labor tightness, demand pressure, supply pressure, and inflation diagnosis.
3Policy rules and balance sheets
Rate rules, debt dynamics, fiscal stabilizers, and macroprudential stress.
3Open economy and growth
Exchange-rate regimes, external balance sheets, and growth accounting.
Complete index
All non-model macro interactives.
2 routes
National accounts
Core
GDP, GNP, and NNI calculator
Y = C + I + G + NXReconciles expenditure, income, production, and national-income bridges.Use when students need the accounting identity before arguing about growth or living standards.CoreBusiness-cycle phase reader
Steps through expansion, peak, contraction, trough, and recovery signals.Use when recession dating, leading indicators, and labor-market lags are being compared.11 routes
Money and banking
Intermediate
Bank and Fed balance-sheet accounting
Shows bank assets, deposits, reserves, Fed liabilities, TGA, ON RRP, and equity.Use before money-creation debates so the balance-sheet signs are settled.CoreMoney aggregate builder
M2 = M1 + savings + small time deposits + retail money fundsBuilds M0, M1, M2, and broader layers from currency, deposits, and near-money claims.Use when the definition of money itself is the source of confusion.AdvancedLoan creates deposit and settlement
Separates loan origination from interbank reserve settlement and funding gaps.Use when correcting the idea that banks mechanically lend out pre-existing reserves.AdvancedFed floor-system simulator
Compares scarce-reserve and abundant-reserve regimes using IORB, ON RRP, reserves, and the discount rate.Use for post-2008 operating-framework lessons and rate-control mechanics.AdvancedQE and QT transmission map
Tracks Fed assets, reserves, deposits, TGA and ON RRP offsets, and term-premium pressure.Use when balance-sheet size and policy-rate stance need to be separated.AdvancedMultiplier versus modern banking
m = (1 + c) / (c + r)Compares textbook reserve multipliers with capital, profitability, credit demand, and funding limits.Use when students need to see why the multiplier is an identity frame, not the modern lending engine.IntermediateMoney, velocity, output, and prices
MV = PYDecomposes nominal spending into money growth, velocity, real output, and inflation.Use when quantity-theory language needs a growth-rate interpretation.IntermediateMonetary base versus broad money
Separates currency, reserves, deposits, excess reserves, and the broad/base ratio.Use when central-bank balance-sheet growth and household deposit money are being conflated.AdvancedDeposit flight and bank stress
Runs deposit outflows through reserves, facilities, securities sales, losses, and ending capital.Use for liquidity-versus-solvency lessons after bank-run episodes.IntermediateReserve-requirement policy simulator
Tests when reserve requirements bind versus when capital or credit demand binds first.Use when a class treats reserve ratios as if they always control lending.IntermediateGlobal money-definition compare
Compares M2, M3, M4, broad-money depth, credit growth, inflation, and real money growth across economies.Use when cross-country money statistics are being compared without checking definitions.2 routes
Cycles, prices, and labor
Intermediate
Labor tightness and inflation simulator
Links demand, participation, matching efficiency, vacancies, unemployment, wages, and core inflation pressure.Use for Beveridge-curve shifts, Phillips-curve pressure, and slack diagnostics.IntermediateDemand shock versus supply shock
Separates demand, import costs, energy costs, capacity, expectations, output gaps, and inflation.Use when the same inflation rate could call for different policy readings.3 routes
Policy rules and balance sheets
Advanced
Taylor rule and yield-curve simulator
i = r* + pi + a(pi - pi*) + b(y - y*)Connects inflation, slack, r-star, policy inertia, term premium, breakevens, and the curve slope.Use when a policy-rate argument needs a rule benchmark and a market-rate bridge.AdvancedFiscal stabilizers and debt dynamics
Runs slack, taxes, transfers, stimulus, rates, growth, debt, and rollover through next-period debt ratios.Use when fiscal support and debt arithmetic must be judged in the same frame.AdvancedHousing credit and macroprudential stress
Moves rates, house prices, incomes, LTVs, default stress, expected bank losses, and capital buffers.Use for borrower-based rules, credit cycles, and household balance-sheet stress.3 routes
Open economy and growth
Advanced
Open-economy trilemma simulator
Tests how exchange-rate regime, capital mobility, and shocks allocate pressure across reserves, output, and autonomy.Use when currency regimes, capital controls, and monetary independence are being traded off.IntermediateSolow and growth-accounting simulator
Separates saving, depreciation, population growth, capital deepening, TFP, and steady-state movement.Use when students need to distinguish transitional growth from sustained living-standard growth.AdvancedExternal balance-sheet simulator
Turns current-account flows, NIIP, FX valuation, foreign-currency exposure, and nominal GDP into a stock-flow read.Use when a current-account story needs to be reconciled with valuation and debt stocks.Formal model lane
Model graphs live in the model workbench
This hub keeps calculators and teaching simulators separate from the model graph workbench. Use Models when the question is a formal DSGE, empirical, theoretical, or agent-based graph.
Open ModelsStudy sequence