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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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← ModelsOverviewHistoryConceptsModelsSchools

Ramsey-Cass-Koopmans
Model

The optimal growth model where a representative household maximizes discounted utility over an infinite horizon, endogenously determining the saving rate through an Euler equation.

How does optimal intertemporal consumption choice shape the transition to steady state?

Composition

kkk
Capital per worker

The state variable; evolves according to k_dot = f...

ccc
Consumption per worker

The control variable; governed by the Euler equati...

yyy
Output per worker

Produced from capital via y = A * k^alpha.

GraphProofCompare

Short Run Equilibrium

Steady-state k

5.93

Steady-state c

1.45

Steady-state y

1.86