a r t i c l e i n f o JEL classification: C12 C22 C32 F30 F31 Keywords: Fractional Integration Nonlinear modelling Mean reverting process Long-memory process This paper examines the time series behavior of monthly bilateral real exchange rates (RER) on a comprehensive sample of 78 industrialized and developing countries, using the US Dollar, the UK Pound and the German Deutsche Mark as numerair...

the relationship between productivity of economic sectors, effective real exchange rate, and purchasing power is a burning economic issue. based on the “balassa – samuelson” theory, higher economic productivity for tradeable goods leads to an increase in effective real exchange rate which is indicative of higher value of domestic money and higher purchasing power of money. the purpose of this s...

treatment of severe immune thrombocytopenic purpura (itp) accompanied by life-threatening bleeding events is challenging and a combination of treatment measures should be undertaken to rapidly increase the platelet count. herein, we report a case of severe itp in a seven-year-old boy who suffered from massive bleeding which was totally unresponsive to conventional therapeutic interventions. sin...

In this paper, we examine whether a monetary authority targets the exchange rate, per se, or instead simply appears to do so as it responds to the exchange rate and other variables in service to inflation and output targets. We combine data-rich estimation with a system of forward-looking equations in order to disentangle the possibilities. The combined approach reveals the potentially misleadi...

Two types of statistical models are empirically applied to test the pattern of volatility in the exchange rate markets. One considers the autoregressive models and tests the random walk hypothesis. The other considers the conditional variance process and tests the hypothesis of chaotic dynamics. Empirical results mostly support the random walk hypothesis and also the existence of Lorenz-type ch...