A body of work using the continuous wavelet transform has been growing. We provide a self-contained summary on its most relevant theoretical results, describe how such transforms can be implemented in practice, and generalize the concept of simple coherency to partial wavelet coherency and...

We use wavelet analysis to investigate to what extent individual U.S. states' business cycles are synchronized. The results show that the U.S. states are remarkably well synchronized compared to the previous findings w.r.t. the Euro Area. There is also a strong and significant correlation...