economic multiplier
noun[S]
ECONOMICSukusacalculationof thedegreeto whichspendingon oneproductorservicecausespeopleandorganizationstospendon other things as aresult:
There's aneconomicmultiplieratworkbecause all of thosepeoplewho are nowemployedat the newfactoryarespendingmoneyin thecommunity.