ADB亚洲开发银行：2025年JDemetra季节调整实用指南报告（英文版）

Seasonal adjustment effectively eliminates systematic and recurring fluctuations that may obscure genuine movements within data, thereby unveiling the fundamental economic trends in infra-annual statistics. Through the integration of the esteemed X-13ARIMA-SEATS and TRAMO/SEATS methodologies, JDemetra+ ensures a unified and reliable framework for generating results that are internationally comparable. JDemetra+ promotes rigorous and reproducible workflows, thereby reinforcing the credibility