internal labour market
noun[C]
UK(USinternal labor market)ukus(abbreviationILM)HR,WORKPLACE
thesystemby which acompanylooksinsideitsownorganizationtofindasuitablepersonfor aseniorjob,insteadof giving thejobto someone fromoutsidethecompany:
Traditionally,Japanesecompanieshave reliedheavilyoninternallabourmarkets.
Compare
external labour market