Stock returns and inflation with supply and demand disturbances

We account for the relation between stock returns and inflationwith two independent disturbances: supply shocks and demandshocks. Supply shocks reflect real output shocks and cause anegative relation between stock returns and inflation, whiledemand shocks are mainly due to monetary shocks and generatea positive relation between stock returns and inflation. Weshow, both theoretically and empirically, that the stock return-inflationrelation varies over time and across countries, depending onthe relative importance of the two types of shocks. Our empiricalevidence is based on pre- and postwar periods in the UnitedStates, as well as the postwar period in the United Kingdom,Japan, Germany.