Business Cycles Variability in Polish Regions in the Years 2000 – 2016

The aim of this article is to study the morphology of regional business cycle in Poland. To do this, such parameters were calculated, like: cycle length, coherence ratio, standard deviation ratio, mean delay, cross-correlation ratio. The main conclusion is that regions have different sensitivity to economy "shocks," both positive and negative. The analysis of the regional specialization appear varied level of it among individual regions. Despite a few exceptions, it can be marked correlation between the level of regional specialization and the degree of sensitivity to economic disturbances