Amidst ongoing globalization, economic and environmental efficiencies are pivotal areas of concern for countries around the world. This study aims to propose a set of financial, economic, and environmental indices to rank the top 50 developing and developed countries globally over the period from 2014 to 2020, utilizing the data envelopment analysis (DEA) Malmquist model. The research uses 9 inputs and 2 outputs related to economic and environmental efficiency, with indicators including financial (financial markets, financial institutions, domestic credit to private sector by banks, research and development expenditure, current health expenditure and foreign direct investment, net inflows); economic (gross capital formation, gross domestic product, and labor force); and environmental (renewable energy consumption and CO2 emissions). Therefore, the study provides valuable insights and recommendations for structural reforms that yield quantifiable economic efficiency results in the coming years. The findings reveal that most countries have an average Malmquist Productivity Index (MPI) greater than 1. Notably, Cyprus, Finland, Hungary, Austria, and Ireland achieved the best performance in resource utilization, while the five lowest-performing countries include Portugal, Estonia, and Germany, showing the least operational efficiency with MPIs below 1. The variability in these results is largely dependent on the technical and technological reforms of the countries involved. This research offers policymakers instruments to reconcile environmental sustainability and financial sustainability. The research highlights the importance of economic and environmental efficiency for policymakers. It recommends that governments offer financial incentives for businesses to adopt green technologies, invest in public awareness campaigns about sustainability, and establish clear metrics to evaluate sustainable development policies.