Skip to content 
Modeling crude oil price volatility in Nigeria: using GARCH (1,1), EGARCH (1,1), and GJR-GARCH (1,1) models
This study investigates the performance of various GARCH models for volatility forecasting, focusing on the GARCH (1,1), EGARCH (1,1), and GJR-GARCH (1,1) frameworks, each tested with normal and Student’s t-distributions. The models are evaluated using four information criteria: Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), Shibata Criterion, and Hannan-Quinn Criterion. The results reveal that […]
Enhancing organizational performance by applying business analysis and green human resource management at the Sudanese international training and management consulting company
This study evaluates the impact of business analysis (BA) dimensions (strategy, data integration, and financial evaluation) on organizational performance (OP), measured in terms of performance outcomes and green performance management. It also considers the mediating role of green human resource management (GHRM), which is made up of practices such as green recruitment, training, rewards, and […]
Perception and reality in Iraq: An econometric analysis of the gap between citizens’ economic sentiment and official indicators
This study looks at the ongoing disconnect between Iraq’s official economic statistics and how people actually feel about their economic situation in the years following the 2003 U.S. invasion. While national figures often show improvements in broad indicators like GDP and oil revenues, those numbers don’t always match what ordinary Iraqis experience in their daily […]
Gamification in mobile shopping applications: effects on user engagement and shopping wellbeing
The rapid advancement in technology and increased implementation of retailers and the usage by customers of shopping applications have intensified the need for designing marketing tactics that enhance customers’ engagement while at the same time supporting their well-being. This research paper examines how the Octalysis gamification framework, with its eight dimensions (1. Epic Meaning and […]
Utilizing tax mechanisms via a proposed quantitative approach to enhance financial indicators and sustainability in Saudi Arabia
This study aims to assess the effectiveness of tax mechanisms in promoting sustainable development in Saudi Arabia through a proposed quantitative framework that links core components of the tax system to financial and developmental indicators. Six key dimensions were examined: tax equity, tax certainty, regulatory clarity, convenience, database accuracy, and collection efficiency. A descriptive–analytical approach […]
تقنيات التحول الرقمي وأثرها في دعم اقتصاديات ممارسات إدارة الموارد البشرية الخضراء بشركات البترول المصرية والليبية
يستهدف هذا البحث دراسة دور تقنيات التحول الرقمي في دعم اقتصاديات ممارسات إدارة الموارد البشرية الخضراء بشركات البترول المصرية والليبية، ويهدف أيضا إلى دراسة مدي تطبيق شركات البترول المصرية والليبية محل البحث لمفاهيم تقنيات التحول الرقمي وأبعاد دعم اقتصاديات ممارسات إدارة الموارد البشرية الخضراء، عن طريق استطلاع أراء ووجهات نظر عينة من العاملين بهذا القطاع، […]
Topp-Leone Weibull Generated Family of Distributions with Applications
We reveal and investigate the Topp-Leone (TL) Weibull G (TLWG) family, a new generator of continuous lifespan distributions, as a consequence of this article. However, various of its statistical characteristics have been proposed. Examine the TLWG family, a new source of continuous lifespan distributions. The parameters of maximum likelihood (MLL) estimations are predicted. We can […]
دور المراجعة الداخلية الحديثة في استدامة الشركات المقيدة بالبورصة
استهدف هذا البحث تحليل الإصدارات المهنية والدراسات السابقة في مجال دور المراجعة الداخلية الحديثة في استدامة الشركات المقيدة بالبورصة . وتنبع أهمية هذا البحث من أنه يوفر اطاراً نظرياً لمفهوم وطبيعة ومهام المراجعة الداخلية الحديثة ومحددات فعاليتها فى مجال استدامة الشركات عامة ، والمقيدة خاصة. وخلص الباحث إلي أن المراجعة الداخلية الحديثة تلعب دوراً هاماً […]
Statistical Properties of Weighted Shanker Distribution
In this article we introduce and investigate the weighted Shanker distribution, a weighted version of Shanker’s (2015) Shanker distribution. To obtain the form of the weighted Shanker distribution, which is shown as a generalization of the Shanker distribution, a special non-negative weight function is considered. The statistical properties of the weighted Shanker distribution are investigated. […]
X-Gamma Lomax Distribution with Different Applications
The X-Gamma Lomax (XGLo) distribution, a new three-parameter modification of the Lomax distribution, was introduced and examined in this study. This distribution’s features for reliability and hazard rate are addressed. The methods for estimating the XGLo distribution parameters using maximum likelihood estimation (MLE) and maximum product spacing (MPS) are explained. To compare the MLE and […]