This chapter summarizes the book and offers final conclusions. The Cantillon effect is an extremely important economic phenomenon, the analysis of which considerably furthers the development of economic theories – both those presented by mainstream economists and by those following the Austrian school. The study of money supply growth carried out in Cantillon’s spirit is an important analytical framework that significantly furthers the theory of economics, mainly the theory of money and inflation, and the theory of the business cycle and price bubbles, but also the theory of banking and central banking, the theory of income distribution, income and wealth inequalities, and the theory of public choice. The chapter argues that major conclusions from the study of the Cantillon effect are as follows: 1) the Cantillon effect is one of the causes of the non-neutrality of money; 2) various monetary inflation channels result in different manifestations of the Cantillon effect, affecting real economic phenomena in an uneven way, including the course of the business cycle; 3) the Cantillon effect resulting from credit expansion contributes to the occurrence of the business cycle, the emergence of price bubbles, and the increase in income and wealth inequalities.