In this article, we analyze informational efficiency in daily returns of NASDAQ, DJIA and S&P 500 indices ranging from 04-01-1980 to 12-09-2013.We replace the traditional coarse graining method used in multi-scale entropy analysis by a Maximal Overlap Discreet Wavelet Transform decomposition and...

The study aims at developing an Early Warning System for predicting balance of payments crises for 17 emerging economies, which constitute a relatively homogenous group, over the period 1975-2012. We construct an index of exchange market pressure, based on monthly depreciations of the nominal...