This paper uses the SVAR methodology to investigate the effects of public investment on growth, and more specifically, the effects of the introduction of a golden rule of public finance. We extend the existing literature by estimating a model of the British economy that takes into account long run factors such as public debt accumulation. We find that in such a long run framework, public investment has a significant and permanently positive effect on GDP growth; this result runs counter to the most recent literature on the topic that was limited to a short run specification. We further find, by comparing different subsamples, that the introduction of the golden rule in 1997 strengthened the positive effect of public investment.
