ECON 002 Lecture Notes - Lecture 21: Substitute Good, Arbitrage, Market Power

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1 Aug 2018
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To make this comparison, walmart makes the yuan and dollar prices comparable by using the nominal exchange rate. As of 11/28/2017 20 yuan were equivalent to . 03. This is clearly below the price of the us manufactured toy, so purchasing the toy from the chinese manufacturer is cheaper than purchasing it from the u. s. manufacturer. To maximize profits, walmart should buy from the chinese manufacturers. The law of one price (or purchasing power parity) suggests the notion that, everything else the same, a good should sell for the same price in all markets across the world . Suppose coffee sells for /pound in seattle and for the equivalent of. /pound in vancouver, and can be almost costlessly transported. There is an opportunity for arbitrage here, making a quick profit by buying coffee in. Such arbitrage drives up the price in seattle and drives down the price in vancouver, until the two prices are equal.

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