labour mobility
From Longman Business Dictionarylabour mobilityˈlabour moˌbility British English (labor mobility American English also, mobility of labour) noun [uncountable]HUMAN RESOURCESECONOMICS the degree to which workers are able and willing to move from one place to another in order to get a job or to change jobsThe government should invest in housing to encourage labour mobility.Local taxes can have important implications for mobility of labour.