Compléter 312-testVersion en ligne 312-test par Farhad Key 1 raised amount supply reduce market less nearly take want induce The supply of a thing , in the phrase " supply and demand , " is the amount that will be offered for sale at each of a series of prices ; the demand is the amount that will be bought at each of a series of prices . The principle that value depends on supply and demand means that in the case of every commodity , more will be bought if the price is lowered , less will be bought if the price is . Therefore sellers , if they wish to buyers to more of a commodity than they are already doing , must its price ; if they raise its price , they will sell less . If there is a general falling off if in demand ? due , say , to trade depression ? sellers will either have to reduce prices or put on the ; they will not be able to sell the same at the same price . Similarly with supply . At a certain price a certain amount will be offered for sale , at a higher price more will be offered , at a lower price less . If consumers want more , they must offer a higher price ; if they less , they will probably be able to force prices down . That is the first result of a change in demand or .
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