中文摘要
尽管具有政策含义，但关于塑造劳动供给反应的各因素相对重要性的经验证据尚属空白。本文有助于填补这一空白，并通过结合挪威福利体系中的断点与获取关于拐点斜率和位置信息的机会的准实验变异，量化了信息摩擦相对于其他摩擦的作用。尽管我们估计的无摩擦弹性为0.3，但总体摩擦使该弹性衰减了约70%。我们发现信息信件将收入弹性从0.06提高至0.15，这意味着信息摩擦至少占总衰减的30%。（JEL D83, H24, I38, J22, J28, J31）
Abstract
Despite the implications for policy, empirical evidence on the relative importance of factors that shape labor supply responses is missing. This paper helps fill this gap and quantifies the role of information frictions versus other frictions by combining notches in the Norwegian welfare system and quasi-experimental variation in access to information about the slope and location of kinks. While we estimate a frictionless elasticity of 0.3, overall frictions attenuate this elasticity by about 70 percent. We find the information letter increased the earnings elasticity from 0.06 to 0.15, implying that information frictions account for at least 30 percent of total attenuation. (JEL D83, H24, I38, J22, J28, J31)