Заполните пропуски следующими словами и словосочетаниями в соответствующей форме: opportunity cost, corresponding, profit, owner, to own, to use (2), alternative, expenses, own, marginal costs, marginal revenue 1.A free market is a market in which buyers and sellers are free of inter vention and control and are able to determine the market price ... to supply and demand. 2.A person is economically free if he can do what he wishes with his ... property, time and effort. 3. At profit-maximizinglevel has to be equal to 4.The personal sector in a mixed economy is that part of the economy that is ... and controlled by private persons and private businesses. 5.The main aim of all firms is the same: to maximize ... though there may be ... aims as well. 6.Under feudal system the king was the ... of all land, and his lords could ... his land. The system came to an end when the peasants (крестьяне) were paid for their work and paid rent for the land they .... 7 .... is the amount lost by not using the resource (labour or capital) in its best alternative use. 8.Profit is the difference between business income and ....