We study the time-varying effects of Tobin's q and cash flow on investment dynamics in the USA using a vector autoregression model with drifting parameters and stochastic volatilities estimated via Bayesian methods. We find significant variation over time of the response of investment to shocks...

Purpose The article aims to establish whether the degree of aversion to inflation and the responsiveness to deviations from potential output have changed over time. Design/methodology/approach This paper assesses time variation in monetary policy rules by applying a time-varying parameter...