几个星期前，经济学家邀请了喜爱我们的巨无霸指数的读者来创造其他古怪的经济指标。
A FEW weeks ago the Economist invited readers who enjoy our Big Mac index to help invent other quirky economic indicators.
只要修正这一偏差，三位经济学家显示，改进的巨无霸指数就可以很好地在年及年以上时间单位上预测汇率走势。
Once that is done, the three economists show that a reconstituted index is good at predicting real exchange rates over horizons of a year or more.
一些经济学家认为巨无霸指数在预测长期汇率波动方面一直惊人的准确。
Some economists think the Big Mac index has been surprisingly accurate in predicting long-run movements in exchange rates.
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