I explore how the intellectual ideas inside central banks have shifted over the first two decades of the new century. To do this I collect every research paper published by advanced economy central banks and examine them using tools from computational linguistics. The analysis points to a shift in the intellectual focus, from a relatively macroeconomic perspective towards a less aggregated view. In part, these changes seem to reflect lessons from the 2008 financial crisis – for example, that macroeconomic models can only get you so far and that microeconomic data are useful for teasing out the causes of aggregate fluctuations. There has been an increase in the amount of research dedicated to the banking and household sectors and a reduction in the amount of intellectual effort invested in modelling the macroeconomy – though some of these shifts had already begun before the crisis. Consistent with this, the similarity of central banking research to that published in top macroeconomic journals has been widening since the crisis.

中文翻译：

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中央银行内部的思想体系：危机以来发生了哪些变化（或没有发生变化）？

我将探讨在新世纪的前二十年中，中央银行内部的知识观念是如何转变的。为此，我收集了发达经济体中央银行发表的每篇研究论文，并使用计算语言学的工具对其进行了研究。分析指出，从相对宏观经济的角度来看，知识的重点已经转移到了较为宽松的观点上。这些变化在某种程度上似乎反映了2008年金融危机的教训–例如，宏观经济模型只能带您走远，而微观经济数据可用于消除总体波动的成因。尽管在金融危机之前已经开始其中一些转变，但专门用于银行和家庭部门的研究数量有所增加，而用于建立宏观经济模型的智力投入却有所减少。与此相一致，自危机以来，中央银行研究与在顶级宏观经济期刊上发表的研究之间的相似性一直在扩大。