Taking over the methodology applied by Michal Kalecki for analysing developed economies and the analytical tool formulated in a simple way for semano-industrialised economies in their most influential work, Development Financing, in this article the author identifies some of the inconsistencies in this Kaleckiana work and addresses the formalisation of the model for a mixed economy and in the short term. Although the analysis is based on the first version of Kalecki’s work, the state- comparative version, seeks to ensure that its results can be extended to a dynamic growth model. In developing a model applicable to the semi-industrialised countries of the world fair, it concludes that – since the orthodox design of accumulation is financed by reducing real wages and peasant income through the deterioration of domestic terms of trade, or by reducing taxes on beneficiaries – the key to macroeconomic management, far from being in government wage or expenditure restrictions, is the establishment of taxes on profits.