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Discrete Time or Continuous Time, That is the Question: the Case of Samuelson’s Multiplier-Accelerator Model

Luo, Yinghao (1998): Discrete Time or Continuous Time, That is the Question: the Case of Samuelson’s Multiplier-Accelerator Model.

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Abstract

A basic problem in economic dynamics is the choice of continuous-time or discrete-time in mathematical modeling. In this paper, we study the continuous-time Samuelson’s multiplier-accelerator model and compare this continuous-time model with its classical discrete-time model. We find that time scales have an influence on the perfect symmetry of periodic motion.

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