外 ('outward') +
流 ('to flow') — flows OUT of where it should be. Constantly used with
人才 (réncái, 'talent'),
资金 (zījīn, 'capital'), and
资源 (zīyuán, 'resources') to describe a country/company losing its assets to elsewhere. Opposite:
流入 (liúrù, 'inflow').