IMPACT OF LEGISLATIVE INITIATIVES ON THE BEHAVIOR OF INTERNATIONAL POSTAL SHIPMENT MARKET PARTICIPANTS: ANALYSIS AND FORECASTING USING STATISTICAL METHODS Economic analysis of law Hrynkevych O. S., Doctor of Science (Economics), Professor at the Department of Statistics, Ukraine, Lviv Handziuk М. A., Applicant for the educational degree «master», program «Economics and Legal Regulation in Business», Ukraine, LvivRomanych I. B.May 27, 2025July 6, 2025.