In this paper we study three crucial questions of economic decision-making: a) How are the people motivated in the choice of profession (career) and schools? This is also a decision that deals with the criteria for building the human capital of various specialisations. b) Can enterprises rely on...

Paper inquires into historical development of key theoretical concepts related to purchasing power parity in 20th century. It presents theories which explain relation between price level, labor productivity and exchange rate. These theories explain the process of how the long-run equilibrium...