In this paper, we explore whether there exists a gap between serial uncorrelatedness and martingale difference for exchange rate changes, and if so, whether nonlinear time series models admissible in ...

Despite the inherent simplicity of the conversion ratio, few retail organizations aggressively measure their conversion rate trends, and in many cases, those that do, often do so inaccurately.

Financial institutions and corporations, as well as individual investors and researchers, often use financial time series data (such as asset prices, exchange rates, GDP, inflation, and other ...