Title	A New Model to Enhance Efficiency in Distributed Data Mining Using Mobile Agent
Author	Saeed Ngmaldin Bardab., Tarig Mohamed Ahmed
Citation	Vol. 21  No. 3  pp. 275-286
Keywords	Distributed data mining, Mobile Agent System.

Title	Utilities Market: The Sphere of Protection of Subjects
Author	Gulnara Dzhumageldiyeva, Inna Zablodska, Irina Yukhymenko-Nazaruk, Vita Dovgaliuk, Irina Suprunova, Ulyana Gylka
Citation	Vol. 21  No. 3  pp. 266-274
Keywords	Poverty Prevention, Legislation Of Ukraine, Protection Of Rights, Rule Of Law, Public Utilities, Targeted Subsidy, Commercial Accounting, Debt.

Title	Methods of regulating migration processes in EU countries
Author	Oksana Hamova, Anna Dergach, Oksana Pikulyk, Irina Zolotykh, Kateryna Diachenko
Citation	Vol. 21  No. 3  pp. 257-265
Keywords	Migration, Migration Flows, Migration Policy, Migration Flow Management Mechanism, Mobility of Human Capital.

Title	Optimization of Agri-Food Supply Chain in a Sustainable Way Using Simulation Modeling
Author	Viktorija Vostriakova, Oleksandra Kononova, Sergey Kravchenko, Andriy Ruzhytskyi, Nataliia Sereda
Citation	Vol. 21  No. 3  pp. 245-256
Keywords	Logistics Distribution System, Logistic Loss, Agri-Food Supply Chain, Sustainable Development, Agricultural Products, VSM-Analysis, Simulation Modeling.