This paper explores the existence of downward nominal wage rigidity (DNWR) in 19 OECD countries, over the period 1973-1999, using data for hourly nominal wages at industry level. Based on a novel nonparametric statistical method, which allows for country and year specific variation in both the median and the dispersion of industry wage changes, we reject the hypothesis of no DNWR. The fraction of wage cuts prevented due to DNWR has fallen over time, from 70 percent in the 1970s to 11 percent in the late 1990s, but the number of industries affected by DNWR has increased. DNWR is more prevalent when unemployment is low, union density is high and employment protection legislation is strict. JEL: J3, J5, C14, C15, E31 Keywords: Downward nominal wage rigidity, OECD, employment protection legislation, wage setting * This is a revised version of 'Downward nominal wage rigidity in Europe'. We wish to thank Lars Holden and Tore Schweder for invaluable help in the formulation of the statistical methods that we use. We are also grateful to Bill Dickens, Mike Elsby, Christoph Knoppik, Alan Manning, Halvor Mehlum and seminar participants at ESEM2003, Norges Bank, IZA Bonn, and at the universities of Oslo, Umeå and Copenhagen for useful comments to earlier drafts. Views and conclusions expressed in this paper are those of the authors alone and cannot be attributed to Norges Bank.