- Corporate Finance and Governance
- Working Capital and Financial Performance
- Efficiency Analysis Using DEA
- Financial Reporting and Valuation Research
- COVID-19 Pandemic Impacts
- Corporate Social Responsibility Reporting
- Intellectual Capital and Performance Analysis
- Auditing, Earnings Management, Governance
- Environmental Sustainability in Business
- Appendicitis Diagnosis and Management
- Retinal Development and Disorders
- Intraocular Surgery and Lenses
- Retinal Diseases and Treatments
- Banking, Crisis Management, COVID-19 Impact
- Environmental and Biological Research in Conflict Zones
- Financial Distress and Bankruptcy Prediction
- Retinal and Optic Conditions
- Diverticular Disease and Complications
- Financial Literacy, Pension, Retirement Analysis
- Healthcare Systems and Reforms
- Firm Innovation and Growth
- Market Dynamics and Volatility
- Impact of AI and Big Data on Business and Society
- Economic and Business Development Strategies
- Retinal Imaging and Analysis
Zagazig University
2020-2025
Ain Shams University
2023-2024
Durham University
2023
This study explores the connection between business strategies, ESG performance, and probability of bankruptcy. Using a sample comprising 1970 U.S. firm-year observations from 2016 to 2020, this adopts several techniques achieve its goals, including partial least squares structural equation modeling (PLS-SEM) algorithm additional analyses. The results demonstrate that firm with better cost leadership strategy has higher performance. A sound performance negatively influence firm's likelihood...
Purpose This study examines the effects of CLS and DS on companies' WCME analyses differences in at company market levels. Design/methodology/approach adopts DEA approach, regression, differences, additional to achieve its objectives. employs 235 non-financial companies 1,175 company-year observations from eight active industries United States 2016 2020. Findings The findings indicate that strategies positively influence WCME. Additionally, differed across size categories industries, with...
Purpose Stock market performance is paramount to every country, as it signifies economic growth, business performance, wealth maximization, savings deployment and consumer confidence. This study investigates the disparities in of listed firms Romania. also examines whether COVID-19 crisis affected performance. Design/methodology/approach The data were collected from 69 on Bucharest Exchange (BSE) 2018 2022, belonging 11 sectors. used several methods achieve its objectives. Difference tests...
Purpose Using data on 51 firms traded in the Egyptian Exchange from 2014 to 2016, this paper aimed assess efficiency of corporate governance (CG) and intellectual capital (IC) practices explore their influence probability a firm's financial distress. Design/methodology/approach The relative CG IC has been measured under Malmquist envelopment analysis model. A modified Z -score model was applied firms' Findings Wilcoxon signed-rank test revealed almost insignificant evidence regarding...
Purpose This study aims to explore the relative efficiency of working capital management (WCM) for Emirati firms before and during coronavirus crisis. Next, this explores potential impact WCM on likelihood financial distress. Design/methodology/approach A data envelopment analysis (DEA) was applied assess WCM. uses emerging market Z -score model predict The logistic regression investigate firms’ Findings results showed a negative significant influence distress likelihood. Practical...
This study evaluates the efficiency of U.S. firms’ working capital management (WCME) by employing data envelopment analysis technique (DEA). uses regression to examine impact WCME and environmental, social, governance (ESGP) performance on firm value. a sample consisting 964 firm-year observations from longitudinal panel collected 2016 2019. Endogeneity issues employment additional analyses for robustness were considered. The results indicated that most firms under investigation relatively...
The healthcare system is a vital element for any community, as it extremely affects the socio-economic development of country. current study aims to assess performance systems countries above fifty million citizens in facing spread COVID-19 pandemic since late December 2019. For this purpose, seven scenarios were adopted via DEA methodology with six variables, which are number medical practitioners (doctors and nurses), hospital beds, Conducted Covid-19 tests, affected cases, recovered death...
Purpose This study investigates the impact of managerial ability and auditor report readability on cost debt corporate liquidity in Omani-listed industrial companies. Design/methodology/approach The uses data from S&P Capital IQ database audited annual reports published Muscat Securities Market. sample consists 35 firms (175 firm-year observations) 2015 to 2019. Managerial is measured using envelopment analysis proposed by Demerjian et al . (2012a, b). Auditor as a log digital file size...
Purpose This study develops a robust model to measure intellectual capital efficiency (ICE). It also analyzes ICE across Gulf companies, sectors and countries. Design/methodology/approach uses data envelopment analysis (DEA), the Malmquist productivity index (MPI), difference tests additional analyses on dataset consisting of 276 firm-year observations. Findings The findings indicate that is analysis. results show significant differences in between firms during period noteworthy countries,...
This study explores the impact of adopting quality management system according to International Standardization for Organizations (ISO) standards called ISO 9001 on firms' working capital efficiency (WCME). analyzes Small- and Medium-Sized Enterprises (SMEs) in Polish construction industry. Regression analysis, difference tests, robustness checks were conducted achieve goals this study. The regression analysis results confirm a limited positive relationship between firms implementing WCME....
Purpose The efficient use of organizational resources is integral to the existence prime firms. This study, using Malmquist data envelopment analysis (DEA), aims assess in level operational and financial efficiency its determinants for ensuring sustaining excellent performance 33 Egyptian private hospitals. Design/methodology/approach study adopted a DEA approach changes Tobit regression was also used identify significant variables affecting their efficiency. In addition, sensitivity carried...
Purpose This study assesses the impact of corporate social responsibility (CSR) practices on relative efficiency conventional and Islamic Egyptian banks in period 2012–2018. Design/methodology/approach A three-stage approach is adopted. First, data envelopment analysis (DEA) used to assess banks. Second, a CSR index designed extent aggregate banks, together with their sub-dimensions. Third, Tobit regression model examine technical these Findings There no statistically significant difference...
Purpose This research explores the influence of intellectual capital (IC) efficiency (ICE) and institutional quality (IQ) on a firm’s structure (CS) in Indian firms. Design/methodology/approach The analysis was conducted sample companies from 2015 to 2019. Data were collected S&P database, regression additional analyses performed achieve objectives this research. Findings findings show significant positive effect ICE CS debt (CSD) an insignificant IQ CSD equity (CSE). also indicate that...
Financing capital investments and working have been the key challenges for small businesses during in aftermath of pandemic. Excessive indebtedness can increase fragility firms, particularly times uncertainty. While there are several programs globally that target entrepreneurs’ financial literacy, most them do not take into consideration resilience after crisis such as pandemics. The objective this paper is to discuss status literacy targeting entrepreneurs. This conducts a review relevant...
Abstract Purpose To correlate quantitative OCT angiography (OCTA) biomarkers with clinical features and to predict the responce after ranibizumab treatment for diabetic macular edema (DME) OCTA biomarkers. Design Non randomized non controlled observational study on 20 eyes DME set in Ophthalmology Department, Ain Shams University. Study subjects were selected randomly from patients attending ophthalmology outpatient clinics during recruitment period, which took place between December 2020...
Purpose To evaluate macular function before and after vitrectomy for idiopathic epiretinal membrane (ERM) with internal limiting (ILM) peeling by multifocal electroretinography (mfERG) their correlations visual acuity (VA) central subfoveal thickness (CST) optical coherence tomography (OCT). Settings Design A prospective interventional case series of 15 eyes ERM 14 patients who underwent pars plana (PPV) removal ILM peeling. Methods Multifocal OCT were performed preoperatively one month...