英文标题：
《How production networks amplify economic growth》
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作者：
James McNerney, Charles Savoie, Francesco Caravelli, Vasco M.
  Carvalho, J. Doyne Farmer
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最新提交年份：
2021
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英文摘要：
  Technological improvement is the most important cause of long-term economic growth. We study the effects of technology improvement in the setting of a production network, in which each producer buys input goods and converts them to other goods, selling the product to households or other producers. We show how this network amplifies the effects of technological improvements as they propagate along chains of production. Longer production chains for an industry bias it towards faster price reduction, and longer production chains for a country bias it towards faster GDP growth. These predictions are in good agreement with data and improve with the passage of time, demonstrating a key influence of production chains in price change and output growth over the long term.
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中文摘要：
技术进步是长期经济增长的最重要原因。我们研究了生产网络环境中技术进步的影响，其中每个生产者购买投入品并将其转换为其他商品，将产品出售给家庭或其他生产者。我们展示了当技术进步沿着生产链传播时，这个网络如何放大技术进步的效果。一个行业较长的生产链使其倾向于更快的降价，而一个国家较长的生产链则使其倾向于更快的GDP增长。这些预测与数据吻合良好，并随着时间的推移而改善，证明了生产链在长期内对价格变化和产出增长的关键影响。
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分类信息：

一级分类：Quantitative Finance        数量金融学
二级分类：General Finance        一般财务
分类描述：Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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一级分类：Physics        物理学
二级分类：Physics and Society        物理学与社会
分类描述：Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体（人类或其他）的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统（如能源网、运输网络）的物理和工程。
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