A recent study of 36 sub-Saharan African countries found a positive impact of aid in the absolute majority of these countries. However, for Tanzania and Ghana, two major aid recipients, aid did not seem to have been equally beneficial. This paper singles out these two countries for a more...

A recent study of 36 Sub Saharan African countries found a positive impact of aid in the absolute majority of these countries. However, for Tanzania and Ghana, two major aid recipients, aid did not seem to have been equally beneficial. This paper singles out these two countries for a more...

The long-run foreign transmission effects are analyzed in a multivariate time-series model of Danish and German prices, exchange rates and interest rates. The analysis of the likelihood function reveals that the vector process is I(2), but that a linear transformation of the prices and the...

In this paper, we propose a framework for the modelling of multivariate dynamic processes which are driven by an unobservable common autoregressive component. Economically motivated by the mixture-of-distribution hypothesis, we model the multivariate intraday trading process of return...

This paper discusses a number of likelihood ratio tests on long-run relations and common trends in the I(2) model and provide new results on the test of overidentifying restrictions on beta xt and the asymptotic variance for the stochastic trends parameters, alpha 1: How to specify deterministic...

The notions of instrument, intermediate target and final target are defined in the context of the cointegrated VAR. A target variable is said to be controllable if it can be made stationary around a desired target value by using the instrument. This can be expressed as a condition on the...

Two methodological approaches to empirical economics which are labelled 'theory first' versus 'reality first' are introduced building the background for the discussion of the individual contributions to this special issue. --