The aim of the subject is the modelling of economic processes (micro and macro) by means of exact means of current engineering mathematics to set up conditions for subsequent computerizing. It essentially contributes to the development of student´s ability to comprehend causal essence of economic interrelations and to perform economic analyses. The contents includes : demand and supply analysis; consumption and saving with the basic models of national economy; revenue, cost and profit analysis; production; elasticity of demand and supply; utility.