%A LUO, Yinghao %A LUO, Mingmin %D 2016 %T DISCRETE TIME OR CONTINUOUS TIME, THAT IS THE QUESTION: THE CASE OF SAMUELSON’S MULTIPLIER-ACCELERATOR MODEL %K %X 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 although time scales do not affect the probability of return to equilibrium solution in Samuelson’s multiplier-accelerator model, but time scales have an influence on the perfect symmetry of periodic motion. %U https://journals.aserspublishing.eu/tpref/article/view/1264 %J Theoretical and Practical Research in Economic Fields %0 Journal Article %R 10.14505/tpref.v7.2(14).04 %P 155-159%V 7 %N 2 %@ 2068-7710 %8 2016-12-31