26 经济学家是经专业训练的专家,我們花钱请他們来我们的经济作出错误的估计。 计量经济学家也是经专业训练的专家,我们花钱请他们利用电脑来为我们的经济作出错误的估计。 If they give a wrong estimation each time, they are Great! You can simply bet the opposite of what ever they say. The sad reality is: about 50% of time, they are right. |
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