Monetary Policy through Production Networks: Evidence from the Stock Market
利用股票市场反应作为实验室，研究生产网络在货币政策传导中的重要性，发现55%到85%的总体反应可归因于网络效应。
Abstract We study the importance of production networks for the transmission of monetary policy using the stock market reaction as laboratory. We attribute 55% to 85% of the overall response to network effects. Large network effects are a robust feature of the data; we document similar patterns in realized fundamentals. Matching sparsity and the first two outdegrees industry-by-industry can explain large network effects. A simple model with intermediate inputs predicts the reaction of stock returns follows a spatial autoregression, which we exploit for our empirical strategy. Our results suggest production networks are an important mechanism for transmitting monetary policy shocks.