This paper presents an endogenous growth model in which language is an engine of growth. Language is an input into production and exchange: agents who can communicate easily are able to produce and consume more. At the same time, economic interaction among agents aects the evolution of language. The model can match a key stylized fact of historical linguistics|a global increase, followed by decline, in linguistic diversity. In addition, the model generates the endogenous creation and destruction of distinct linguistic groups.

中文翻译：

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长期的语言多样性*

本文提出了一种内生增长模型，其中语言是增长的引擎。语言是生产和交换的输入：可以轻松交流的代理能够生产和消费更多。同时，代理人之间的经济互动影响着语言的演变。该模型可以匹配历史语言学的一个关键风格化事实|语言多样性在全球范围内增加，然后下降。此外，该模型产生了不同语言群体的内生性创造和破坏。