Welcome to the Proceedings of the 2026 5th International Conference on Mathematical Statistics and Economic Analysis (MSEA 2026). The conference brought together researchers, scholars, and professionals to exchange recent achievements, discuss emerging challenges, and explore interdisciplinary approaches in mathematical statistics, economics, and related fields. The conference covered broad research areas related to economic analysis and mathematical statistics, including digital economy, financial engineering, mathematical finance, economic policy, international economy, environmental economy, sustainable development, economic big data analytics, empirical economic research, statistics, applied mathematics, probability theory and mathematical statistics, information and computing science, and interdisciplinary applications of quantitative methods. These discussions reflected the growing integration of mathematical methodologies and economic research in addressing complex social and economic issues.

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