In the problem of optimal taxation in an economy with two productive factors, labor and capital, the optimal solution when the government can commit to a sequence of tax rates, has the tax on capital tending to zero in the limit, with all the tax burden on labour. It is well known, however, that...

Most authors have attributed the real effects of money in the short run either to mistaken expectations or to non-market clearing or both. In this paper we argue that neither of these channels is needed to explain the facts. We show that a competitive market clearing model in which money enters...

Once the zero bound on nominal interest rates is taken into account, Taylor-type interest-rate feedback rules give rise to unintended self-fulfilling decelerating inflation paths and aggregate fluctuations driven by arbitrary revisions in expectations. These undesirable equilibria exhibit the...

The purpose of this paper is to characterize the possibility of indeterminacy in multisector growth models that exhibit constant marginal returns to scale at the social level, with empirically realistic small external effects. Our results demonstrate that indeterminacy does not require...

In this paper, we characterize conditions under which interest rate feedback rules wherby the nominal interest rate is set as an increasing function of the inflation rate generate multiple equilibria. We show that these conditions depend not only on the fiscal regime (as emphasized in the fiscal...