# Keynes–Ramsey rule

> Optimality condition for the rate of change of consumption

**Wikidata**: [Q19287889](https://www.wikidata.org/wiki/Q19287889)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Keynes–Ramsey_rule)  
**Source**: https://4ort.xyz/entity/keynes-ramsey-rule