In the recent SVAR literature, the liquidity effect has been studied by imposing a variety of identifying restrictions required under the assumption that the SVAR fundamental disturbances are homoscedastic. Using typical SVAR processes, we first show that this assumption is not supported by the...

We propose an empirical procedure, which exploits the conditional heteroscedasticity of fundamental disturbances, to test the targeting and orthogonality restrictions imposed in the recent VAR literature to identify monetary policy shocks. Based on U.S. monthly data for the post-1982 period, we...