The significance of digital investment has grown substantially, enabled by advancing technology, which provides digital monitoring of investment instruments. Consequently, analyzing these instruments has become imperative. In particular, investors are inclined to compare new investment...

Previous research has hypothesized the existence of a long-term equilibrium relation between stock prices and certain macroeconomic variables. The vector error correction model (VECM) (Johansen (1991)) is utilized to determine the impact of selected macroeconomic variables on Amman Stock...

In applied econometrics researchers often infer the relation among nonstationary time series by regression of their differences. The aim of this paper is to show that in some circumstances regression of differenced time series tends to reject the relation among their levels. This phenomenon is...