This article analyses the long memory properties of quarterly real output per capita in the US (1948Q1–2008Q3) using non-parametric, semi-parametric and parametric techniques. The results vary substantially depending on the methodology employed. Evidence of mean reversion is obtained in a...

The transition process in Central and Eastern Europe was associated with growing environmental awareness. This paper analyses the determinants of pollution abatement and control expenditure at plant level in the case of Romania using survey data and a multilevel regression model. Our findings...

This paper examines several US monthly financial time series using fractional integration and cointegration techniques. The univariate analysis based on fractional integration aims to determine whether the series are I(1) (in which case markets might be efficient) or alternatively I(d) with <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$$d...</equationsource></inlineequation>

There is a range of formal approaches to the modelling of policy responses. This paper will give a very short summary of the broad approaches, which are currently used, then a new approach will be proposed. The main objective of this paper is to explain the motivation and workings of a new...

This paper investigates changes in the causal structure linking the G-7 short-term rates by using a sequential test for the constancy of the adjustment coefficients in error correction equations. This technique allows us to detect permanent structural breaks in the causal linkages. In this...