Purpose – The purpose of this study is to investigate the impacts of interval measured data, rather than traditional point data, on economic variability studies. Design/methodology/approach – The study uses interval measured data to forecast the variability of future stock market changes....

Purpose – The purpose of this paper is to forecast variability in mortgage rates by using interval measured data and interval computing method. Design/methodology/approach – Variability (interval) forecasts generated by the interval computing are compared with lower‐ and upper‐bound...

Purpose – The purpose of this paper is to associate a probabilistic confidence with the stock market interval forecasts obtained with the interval least squares (ILS) algorithm. The term probabilistic confidence in this paper means the probability of a point observation that will fall in the...