This paper accounts for stress-pattern diversity in languages such as English, where words that are otherwise equivalent in terms of phonotactic structure and morphosyntactic category can take both initial and final stress, as seen in ˈlentil–hoˈtel, ˈenvoy–deˈgree, ˈresearchN–reˈsearchNand ˈaccessV–acˈcessV. Addressing the problem in general and abstract terms, we identify systematic conditions under which stress-pattern diversity becomes stable. We hypothesise that words adopt stress patterns that produce, on average, the best possible phrase-level rhythm. We model this hypothesis in evolutionary game theory, predict that stress-pattern diversity among polysyllabic word forms depends on the frequency of monosyllables and demonstrate how that prediction is met both in Present-Day English and in its history.

中文翻译：

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关于词汇重音的复制动力学：根据进化博弈论解释重音模式的多样性

本文考虑了英语等语言中的重音模式多样性，其中在语音结构和形态句法类别方面等价的单词可以同时采用初始和最终重音，如扁豆–豪,电话, ,使者–德,格力, ,研究ñ–回覆,搜索ñ和使用权五–交流,过程五. 以一般和抽象的术语解决问题，我们确定了压力模式多样性变得稳定的系统条件。我们假设单词采用重音模式，平均而言，产生最佳的短语级节奏。我们在进化博弈论中对这一假设进行建模，预测多音节词形式之间的重音模式多样性取决于单音节的频率，并证明了这一预测如何在现代英语及其历史中得到满足。