This paper analyses the theoretical and policy implications of assuming firm-specific lumpy investment behaviour by firms and compares such implications to those occurring when adopting different investment specifications in a new-Keynesian framework. We develop numerical simulations of the...

This chapter aims to provide a hands-on approach to New Keynesian models and their uses for macroeconomic policy analysis. It starts by reviewing the origins of the New Keynesian approach, the key model ingredients and representative models. Building blocks of current-generation dynamic...

This chapter aims to provide a hands-on approach to New Keynesian models and their uses for macroeconomic policy analysis. It starts by reviewing the origins of the New Keynesian approach, the key model ingredients and representative models. Building blocks of current-generation dynamic...

The New-Keynesian aggregate supply derives from micro-foundations an inflation-dynamics model very much like the tradition in the monetary literature. Inflation is primarily affected by: (i) Economic slack; (ii) Expectations; (iii) Supply shocks; and, (iv) Inflation persistence.This paper...

Both from theoretical and practical viewpoints, I argue that the New Keynesian model's forward-looking IS curve should be derived by quadratic approximation. This leaves uncertainty in the basic three-equation model. After adding exogenous AR(1) processes, I examine the results by numerical...

The aim of our contribution is to present an innovative instrument to teach macroeconomics at the undergraduate and master level. We develop a digital learning platform to present and explore some controversies at the very foundations of macroeconomic theory. For this purpose, we explicitly...

We calibrate a standard New Keynesian model with three alternative representations of monetary policy- an optimal timeless rule, a Taylor rule and another with interest rate smoothing- with the aim of testing which if any can match the data according to the method of indirect inference. We find...

Bruun and Heyn-Johnsen (2009) state the paradox that economics has failed to provide a satisfactory explanation of how monetary profits are generated, even though the generation of a physical surplus is an established aspect of non-neoclassical economics. They emphasise that our ability to...

Bruun and Heyn-Johnsen (2009) state the paradox that economics has failed to provide a satisfactory explanation of how monetary profits are generated, even though the generation of a physical surplus is an established aspect of non-neoclassical economics. They emphasise that our ability to...

In this study, I modify the uncovered interest parity condition to account for foreign exchange interventions in the context of a small open economy. This is done in a framework of a semistructural New Keynesian model. I examine the case of Ukraine, which de facto transitioned to inflation...