Macroeconomics 13th Edition by William Baumol ,Alan Blinder

تمرين 5

Suppose you want to reserve a hotel room in London for the coming summer but are worried that the value of the pound may rise between now and then, making the room too expensive for your budget. Explain how a speculator could relieve you of this worry. (Don't actually try it-speculators deal only in very large sums!)