Openness, Inflation, and the Phillips Curve: A Puzzle
检验了开放度与产出-通胀权衡（菲利普斯曲线）斜率之间的相关性，发现直接证据不充分，进而质疑了Romer（1993）关于开放度与通胀负相关的常见解释，并探讨了其他可能原因。
Models of open economies with nominal rigidities are often thought to predict a correlation between openness to trade and the slope of the output-inflation trade-off, or Phillips curve. Using a variety of measures of the trade-off and a standard measure of openness, this paper argues that the direct evidence for a correlation is not strong. In turn, this calls into question the usual explanation for the negative correlation between openness and inflation that was documented by Romer (1993). The paper considers some alternative explanations for the Romer evidence.