Inflation is a far from homogeneous phenomenon, but this fact is ignored in most work on consumer price inflation. Using a novel methodology grounded in theory, the ten sub-components of the consumer price index (excluding mortgage interest rates, or CPIX) for South Africa are modeled separately...

We build a 4-equation model of the inflation process in South Africa (which has recently adopted inflation targeting), including the exchange rate, consumer prices, producer price, and import prices. This provides useful information on the speed and extent of exchange rate pass- through, and...

Successful descriptions of the short-term nominal interest rate inertial behavior have frequently been obtained with small scale macro models in which a Central Banker minimizes a loss function containing an argument labelled as interest rate smoothing. The rationale for this argument is not...

The paper presents a structural model framework for a small open economy. The model, based on optimising households and firms, has been calibrated on Czech macroeconomic data in order to develop an analytic framework suitable for analysing key policy questions related to the Czech Republic’s...

What is the optimum quantity of money in a society? This paper answers this question both from the perspective of a utility maximizing model with real balances in the utility function, and employing an inventory theoretic model which focuses attention on the costs of transacting in different...

The paper offers a new explanation for the cause of the Great Inflation by constructing a model that explicitly separates the roles of government and monetary policymakers. A mechanism that inflation can accelerate even if an inflation target is low is uncovered. The model solves the puzzle of...

The New Keynesian model with rational expectations unrealistically predicts that unanticipated credible changes in the inflation target lead to an immediate jump in the inflation level while the output gap is unaffected. We set up a theoretical model where agents learn the behaviour of the...

The real effects of an imperfectly credible disinflation depend critically on the extent of price rigidity. Therefore, the study of how the policymaker's credibility affects the outcome of an announced disinflation should not be dissociated from the analysis of the determinants of the frequency...

This paper analyses the role of inflation expectations in the euro area. On one hand, the question is how inflation expectations affect both inflation and output, and, on the other hand, how inflation expectations reflect developments in these variables. The analyses make use of a simple VAR...

New Keynesian models of the business cycle have become the new paradigm of monetary economics, often used for policy analysis. This paper shows that this class of models fail in one crucial respect: they imply a strong negative contemporaneous correlation between inflation and output....