Monthly seasonally unadjusted data can exhibit roots with possibly fractional orders of integration, corresponding to the monthly but also to the quarterly and to the long-run or trending components of the series. In this paper we use a procedure which is suitable to test simultaneously for the order of integration of each of these components and apply it to several US monetary aggregates. JEL ...

Vitamins, minerals, herbs, amino acids, dietary fibers and the other so many chemicals are called as supplements. They widely used worldwide. Across all major categories overall supplement use has increased year by year. By definition, they should maintain nutrients otherwise that may not be consumed in adequate amounts. So much supplements simply taken for healthy life, but some reduce modulat...

36 month buy-and-hold returns are calculated for a recent sample of initial public offerings (IPOs) on UK stock markets in order to test the robustness of earlier results which suggest that IPOs deliver abnormally low long-run returns. A bootstrapped and skew-adjusted t statistic is employed. Overall, there is little evidence of significant abnormal long-run performance. Further tests reveal th...

Static and discrete time pricing operators for two price economies are reviewed and then generalized to the continuous time setting of an underlying Hunt process. The continuous time operators define nonlinear partial integrodifferential equations that are solved numerically for the three valuations of bid, ask and expectation. The operators employ concave distortions by inducing a probability ...

Reforming and innovating how the Information Systems Journal (ISJ) publishes promotes research has always been a core value of journal. Therefore, in 2021, we introduced new submission format with ISJ Trending Topics Workshop. After 2 years, are pleased to announce that first paper from Workshop series will be published Adam et al. (2023) was submitted workshop issue June 2021 appear this issue...