Response to the comment ‘“Phantom of the Opera?” or “Sex and the City”’ by Thomas K. Bauer, Philipp Breidenbach, and Christoph M. Schmidt
回应了对作者2011年论文中识别策略的质疑，提供进一步论证和实证证据，证明以巴洛克歌剧院位置作为高技能人才集聚工具变量的有效性。
In our paper “The Phantom of the Opera,” published in this journal in 2011, we introduce proximity to a baroque opera house location as an instrument for concentrations of high-skilled individuals today. In the second stage, we assess productive spillovers from these high-skilled individuals attracted by cultural amenities. Thomas K. Bauer, Philipp Breidenbach, and Christoph M. Schmidt challenge our identification strategy in their comment. In our response, we provide further arguments and empirical evidence for the unambiguous validity of our strategy.