But the view that an exchange rate appreciation will make imports cheaper and exports more expensive to trading partners often prevails to such an extent that the price elasticity of demand and supply of imports and exports, and their interaction, are ignored 然而,有些人只着眼于货币升值会令有关经济体系的进口价格下跌及出口价格上升,而忽略了进出口供求的价格弹性以及它们之间的关系。