Measuring Structural Unemployment: NAWRU Estimates in the Nordic Countries
发现OECD用于衡量结构性失业的NAWRU指标在四个北欧国家上升，但作者用1964-1994年数据建立了稳定的工资方程，指出NAWRU估计的不稳定源于底层工资方程设定错误，而非工资设定本身不稳定。
The non‐accelerating wage rate of unemployment (NAWRU indicator), used by the OECD as a measure of structural unemployment, has risen for the four Nordic countries Denmark, Finland, Norway and Sweden. In this paper we present stable empirical wage equations for the same countries over the period 1964–1994, in sharp contrast to the increased NAWRU estimates. The instability of the NAWRU estimates is an artefact of a misspecified underlying wage equation, and not due to instability in wage setting itself.