This paper has two aims. First, it provides simple theoretical models that highlight two channels whereby monetary shocks have permanent real effects and the interactions between these channels. Second, it presents an empirical dynamic model, covering a panel of EU countries, and derives the...

We show that short and long nominal interest rates are independent monetary policy instruments. The pegging of both helps solving the problem of multiplicity that arises when only short rates are used as the instrument of policy. A peg of the nominal returns on assets of different maturities is...

The paper considers three methods for eliminating the zero lower bound on nominal interest rates and thus for restoring symmetry to domain over which the central bank can vary its policy rate. They are: (1) abolishing currency (which would also be a useful crime-fighting measure); (2) paying...

We study the determination of Irish inflation between 1926 and 2012. The difference between unemployment and the NAIRU is a significant determinant of inflation in a simple backward-looking Phillips Curve that incorporates import prices. While there is a break in 1979-80, when the link to...

Flexible inflation targeting cannot be rationalised using conventional welfare economic criteria, except in a single, practically uninteresting special case. New-Keynesian DSGE models imply that optimal monetary policy implements the Bailey-Friedman Optimal Quantity of Money rule and that actual...

After a brief review of the main differences between New and Old Keynesian economics from the 1960s this paper focuses on a tension between traditional sluggish measures of potential output commonly used by policy-makers and the New Keynesian (NK) notion of this variable which conceptualizes it...

The paper discusses some fundamental problems in monetary economics associated with the determination and role of the numéraire. The issues are introduced by formalising a proposal, attributed to Eisler, to remove the zero lower bound on nominal interest rates by unbundling the numéraire and...

"Macroeconomics without the LM curve" has begun to move advanced undergraduate closed economy macroeconomics teaching models away from the IS/LM approach to simple versions of the New Keynesian models taught in graduate courses and used in central banks. But the equally traditional and...

This paper develops a micro-founded general equilibrium model of the financial system composed of ultimate borrowers, ultimate lenders and financial intermediaries. The model is used to investigate the impact of uncertainty about the likelihood of governmental bailouts on leverage, interest...

We study the determination of Irish inflation between 1935 and 2012 using a Phillips curve approach. We find that a simple backward-looking Phillips Curve that incorporates import prices is stable over the sample period and passes a number of diagnostic tests. We also consider the importance of...