Innovation is essential for promoting long-term growth in middle-income countries (MICs). Amid growing remittance inflows, understanding how these financial transfers influence innovation outcomes has become increasingly important; however, the prevailing literature overlooks the impact of...

The two groups of EU economies, the euro area and the non-euro area, are statistically analyzed taking into account the fulfillment of the euro area financial criteria and economic performance over the period 2000-2023. Compliance with financial criteria, economic performance, and their...

Cryptocurrency is the most innovative financial and technological breakthrough of this generation. Investment in cryptocurrency grew from USD 11.18 billion in December 2016 to USD 2.147 trillion in April 2024; however, the rationality of investor exuberance is uncertain. This paper explores...

This study develops a comprehensive econometric framework for assessing market efficiency in sustainability indices through rolling fractional integration analysis. We employ four fractional integration estimators (Andrews-Guggenberger, Robinson GSE, GPH, and FELW) with formal statistical...