EN
Risk is an inherent part of economic activity. In practice we distinguish many categories of risk. These classifications are useful from a practical point of view, because they help to answer the question of where sources of risk may be identified. The main goal of this paper is to present basic definitions of risk, risk structures and measurement methods. The paper is structured with that goal in mind. The author first presents a review of the literature on defining risk, analyses definitions of risk and uncertainty and looks at the measures and the structure of risk. On the grounds of his analysis he ascertains that numerous types of risk exist in every enterprise, all of which to varying degrees affect the business’s proper functioning. The analysis of the sources and structures of risk allows him to point out threats accompanying the different kinds of risk and to put forward the most effective measures for minimizing the influence of risk on financial results.