We investigate portfolio selection performance as in Markowitz by evaluating variance matrix estimation criteria in the currency market. This study challenges theoretically rigorous shrinkage covariance estimators using multiple evaluation metrics: systematic loss function, risk profile of...

This study examines the influence of Oil Price Volatility on Banks efficiency within the BRICS countries (Brazil, Russia, India, China, and South Africa) noting the importance of the banking sector efficiency as a tool to ensure financial stability in the region. Being able to measure efficiency...

This paper aims at contributing to the international portfolio investment decisions among the emerging BRICS countries where individual and institutional investors seek diversification benefits and to help in advocating policy changes and implementation as a response to the changing dynamics in...

During recent times of uncertainty, sustainable marketing and sustainable finance became hot research topics attracting both academics and practitioners. Although centering marketing efforts around the firm's Environmental, Social, and Governance (ESG) and Corporate Social Responsibility (CSR)...

Motivated by agency theory, this study seeks to understand the effect of the country-level national governance system on the extent of corporate risk-taking in the MENA region. The study employs a two-step generalized method of moments (GMM) approach to evaluate the influence of governance...