This paper points to the potential role of monetary policy in affecting the degree of real wage cyclicality. We show that the degree and direction of real wage cyclicality is determined by the interaction of (i) the returns to scale in production, (ii) the nature of aggregate shocks, and (iii) monetary policy. Given that production technology is fairly constant in the short run, we suggest that variations in the real wage -output covariance depend largely on the combination of the latter two. Identifying well-documeneted monetary policy phases in six major OECD countries and accounting for both aggregate demand and supply shocks, we provide empirical evidence to support our main theoretical claim. JEL Classi…cation Numbers: E24, E32, E52.