In the last few years new techinques able to help in explaining macroeconomic fluctuations have been developed. Following the article o fBlanchard (1989), concerning US macroeconomic data we will examine the UK economy using a new methodology, the so called "Structural" VAR analysis, developed...

The problem we want to solve in this paper is that of finding a statistical test that pennits us to compare the impulse response function (JRF) of a linear model with that of a nonlinear one. We achieve our goal starting with a simple case where the comparison is between two VAR models of...