particular in terms of scaling distribution preservation. Identified distributions of all simulated processes are compared with …

sequence of random variables, i.e a stochastic process. Sharp scaling exponents or unifractal behavior of such processes has … been reported in several works. In this letter we investigate the question of scaling transformation of price processes by … physics. Using two sets of financial chronological time series, we show that the scaling transformation is a non-linear group …

­term volatility of the real exchange rate with its slow convergence to parity. Further, the drift and diffusion of the real exchange …

Although nonlinearity is the rule in economic theory, nonlinearity tends to make life difficult for econometricians …. While there have been many advances in nonlinear econometrics in recent years, some problems produced by nonlinearity remain …