Does Labor's Share Drive Inflation?
检验新凯恩斯菲利普斯曲线中劳动收入份额作为驱动变量的实证表现，发现其拟合价格通胀效果很差，因此不应将劳动份额视为产出缺口的良好度量或纳入货币政策规则。
A number of researchers have recently argued that the new-Keynesian Phillips curve matches the empirical behavior of inflation well when the labor income share is used as a driving variable, but fits poorly when deterministically detrended output is used. The theoretical motivation for these results rests on the idea that the output gap—the deviation between actual and potential output—is better captured by the labor income share, in turn implying that central banks should raise interest rates in response to increases in this variable. We show that the empirical evidence generally suggests that the labor share version of the new-Keynesian Phillips curve is a very poor model of price inflation. We conclude that there is little reason to view the labor income share as a good measure of the output gap, or as an appropriate variable for incorporation in a monetary policy rule.