The literature on business cycle synchronization in Europe frequently presumes an alleged ‘core‒periphery’ pattern without providing empirical verification of the underlying cyclical (dis)similarities or the supposed but unobservable ‘European business cycle(s)’. To provide a...

We address the problem of finding the optimal lockdown and reopening policy during a pandemic like COVID-19 for a social planner who prioritizes health over the economy. Agents are connected through a fuzzy network of contacts, and the planner's objective is to determine the policy that contains...

This research developed an approach to reliable team formation and supplier network design, focusing on a multi-objective model integrating fuzzy-set theory and social network analysis. The approach simultaneously focuses on reliable collaboration network, order allocation, capabilities (skills,...