The output multiplier turns negative before a deficit spending program expires.We show the generality of this unpleasant finding for the standard real business cyclemodel. We then calibrate an extended model for the US and demonstrate how fiscalstimulus slows down economic recovery from...

We set up a neoclassical growth model extended by a corporate sector, aninvestment and finance decision of firms, and a set of taxes on capital income. We provideanalytical dynamic scoring of taxes on corporate income, dividends, capital gains, otherprivate capital income, and depreciation...

Previous research on optimal R&D subsidies has focussed on the long run.This paper characterizes the optimal time path of R&D subsidization in a semi-endogenous growth model, by exploiting a recently developed numerical method.Starting from the steady state under current R&D subsidization in the...

We propose a simple and powerful method for determining the transition processin continuous-time DSGE models under Poisson uncertainty numerically. The idea isto transform the system of stochastic dierential equations into a system of functionaldierential equations of the retarded type. We then...