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Macro by Mark

Global Economic Data, Empirical Models, and Macro Theory
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Public data from government agencies and multilateral statistical releases, anchored in official sources

© 2026 Mark Jayson Nation

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Theory-Based Models

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Macro by Mark

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Loanable Funds
Model

The supply of savings meets the demand for investment at an equilibrium real interest rate. When households save more, the supply curve shifts right and the rate falls; when firms want to invest more, the demand curve shifts right and the rate rises.

Compare

Side-by-side scenario comparison. Static equilibrium — point equilibria only.

Scenario tray

Current scenario

This is always the anchor column for the comparison view.

Presets

Government deficit

Public borrowing reduces available saving, pushing rates up.

Investment boom

Tech optimism lifts investment demand at every rate.

Save a scenario from the Graph page in this browser to add more columns here.

Current scenario

Real rate

8.57

Funds exchanged

4.9

Delta table

ReadoutCurrent scenario
Real rate
8.57
Funds exchanged
4.9

Analysis notes

Back to graphOpen proof