University for Continuing Education Krems Getting into the flow - what do we know now, 15 years since CLANDESTINO? Key points • Many countries have stock estimates of irregular migrants, but flow estimates are still scarce. • Irregular migration flows are more often measured through statistical indicators. • Compared to CLANDESTINO, the MIrreM Project has found that there are now more irregular flow indicators, particularly for geographic flows, and to some extent, also asylum-related status flows. • The available EU-level indicators for irregular flows are generally of good quality, particularly with respect to accessibility and documentation, but there are some limitations in terms of validity and reliability. en TEXT book part Buchkapitel Capitolo di libro Testo Capitolo di libro Text book part Text Buchkapitel Irregular migration flows flow indicators CLANDESTINO data quality EU migration statistics 2025-09-30 2025-09-30 Lalaine Siruno Arjen Leerkes University of Krems Press