Аннотация:The dependence of the gross domestic product on time ( Y ( t )) in macroeconomic Kalecki’s model in view of an investment temporary lag in the case of periodic dependence of the consumption function on time is investigated. As a result of solutions of linear ordinary differential equation and differential equation with lagging argument an analytical expressions for the Y ( t ) is received. Some aspects of influence of a temporary lag on character of variation of the function Y ( t ) are shown.
