A Random Matrix Approach to Dynamic Factors in macroeconomic data
  We show how random matrix theory can be applied to develop new algorithms to extract dynamic factors from macroeconomic time series. In particular, we consider a limit where the number of random variables N and the number of consecutive time measurements T are large but the ratio N / T is fixed. In this regime the underlying random matrices are asymptotically equivalent to Free Random Variables (FRV).Application of these methods for macroeconomic indicators for Poland economy is also presented. 
Ma{\l}gorzata Snarska
q-fin.ST physics.comp-ph physics.data-an physics.soc-ph