Nodokļu ieņēmumu modelēšana, izmantojot sistēmdinamikas metodi

In the paper the author represents the system dynamic model of taxes income and it action results. The system dynamic is one from systems research methods, which analyses the systems in time depending from structure of system elements and their mutual influence, including reasons connections, feedback, reaction delay and so on. In Latvia this method used in building industry forecasting, estimated credit burden for Latvia and Latvian populations, for job market and labour migration, for mobile telephones market in Latvia. In paper method bases are described and shown its application possibilities in macroeconomics. In paper is declared, that the system dynamic model base is the macroeconomic circulating in model. In model basis is householders and firms. The blocks of savings and government complement model. In paper both graphic and equalization form shown it relations. One from novelty elements is constrained with form of the mathematical equalizations of these connections in the system dynamic model. A model allows estimate volumes of material stocks in the state, their changes, get GNP level from production and demand hands. Using a model, it is possible to simulate income of taxes and state budget. In paper state budget prognosis is given for 2009 for Latvia, as also estimated influence of crises and changes of taxes rates to taxes income. In paper offered use system dynamic method and produced model in teaching process, in macroeconomics studying.