We provide a Keynesian growth theory in which pessimistic expectations can lead to very persistent, or even permanent, slumps characterized by unemployment and weak growth. We refer to these episodes as stagnation traps, because they consist in the joint occurrence of a liquidity and a growth...

A hosszú ciklus nyoma megtalálható az Egyesült Államok növekedési adataiban is. A dolgozat első része e ciklus elméletét és elmélettörténeti előzményeit foglalja össze. A második rész a ciklus meghatározásának nehézségeit és első eredményeit elemzi. A paraméterek...

A második világháború után fellendülő és a hetvenes évek közepén tetőző hosszú gazdasági hullám (a negyedik felismert Kondratyevciklus) leszálló ágának kényszerei szabják meg ma mindenütt a gazdasági élet rugalmas, de át nem hágható korlátait. Sok jel mutat azonban...

We study optimal monetary policy in a New Keynesian (NK) model with endogenous growth and knowledge spillovers external to each firm. We find that, in contrast with the standard NK model, the Ramsey dynamics implies deviation from full inflation targeting in response to technology and government...

We study the effects of real uncertainty on long-run growth under different Taylor-type rules. We fi…nd a non-negligible relationship between real uncertainty and growth, which depends on the source of real uncertainty as well as the type of the Taylor rule considered. Importantly, when...

We study monetary policy in a New Keynesian (NK) model with endogenous growth and knowledge spillovers external to each firm. We find the following results: (i) technology and government spending shocks have different effects on growth; (ii) disinflationary monetary policies entail positive...

We introduce endogenous growth in an otherwise standard NK model with staggered prices and wages. Some results follow: (i) monetary volatility negatively affects long-run growth; (ii) the relation between nominal volatility and growth depends on the persistence of the nominal shocks and on the...

We study the implications of having different sources of nominal rigidities on the relationship between productivity growth and shocks volatility in a model with procyclical R&D and imperfect competition in goods and labour markets. We show that the effects of uncertainty on long-term growth not...

We study the implications of having different sources of nominal rigidities on the relationship between productivity growth and shocks volatility in a model with procyclical R&D and imperfect competition in goods and labour markets. We show that the effects of uncertainty on long-term growth not...

This paper examines how the mechanism driving growth in the economy is likely to affect the optimal monetary policy response to shocks. We consider the Ramsey policy in a New Keynesian model in which growth is sustained by the creation of new patented technologies through R&D and we compare the...