When a company releases earnings results or makes announcements, a dominant sectoral wide lead-lag effect from the stock on the entire system may occur. To improve the estimation of a system experiencing dominant system-wide lead-lag effects from one or a few asset in the presence of short time...

The availability of many variables with predictive power makes their selection in a regression context difficult. This study considers robust and understandable low-dimensional estimators as building blocks to improve overall predictive power by optimally combining these building blocks. Our new...

The energy sector is critical to economic growth and development, and the everchanging world order requires a new review of past and current trends in this area. This paper focuses on the members of the Organization of Turkic States (OTS) that share a common history, similar cultural and...