▁relationship ▁between ▁the ▁worker ' s ▁efforts ▁and ▁the ▁work - related ▁re wards ▁the ▁employee ▁receives . ▁The ▁E RI ▁model ▁suggests ▁that ▁work ▁marked ▁by ▁high ▁levels ▁of ▁effort ▁and ▁low ▁re wards ▁leads ▁to ▁stra in ▁( e . g ., ▁psych ological ▁sympt oms , ▁physical ▁health ▁problems ). ▁The ▁re wards ▁of ▁the ▁job ▁can ▁be ▁tang ible ▁like ▁pay ▁or ▁int ang ible ▁like ▁appreci ation ▁and ▁fair ▁treatment . ▁Another ▁fac et ▁of ▁the ▁model ▁is ▁that ▁over commit ment ▁to ▁the ▁job ▁can ▁fuel ▁im bal ance . ▁ ▁Person - environment ▁fit ▁model ▁The ▁person - environment ▁fit ▁model ▁under lines ▁the ▁match ▁between ▁a ▁person ▁and ▁his / her ▁work ▁environment . ▁The ▁clos eness ▁of ▁the ▁match ▁influ ences ▁the ▁individual ' s ▁health . ▁For ▁health y ▁working ▁conditions , ▁it ▁is ▁necessary ▁that ▁employees ’ ▁att itudes , ▁skills , ▁ab ilities , ▁and ▁resources ▁match ▁the ▁dem ands ▁of ▁their ▁job . ▁The ▁greater ▁the ▁gap ▁or ▁mis fit ▁( e ither ▁subject ive ▁or ▁objective ) ▁between ▁the ▁person ▁and ▁his / her ▁work ▁environment , ▁the ▁greater ▁the ▁stra in . ▁Stra ins ▁can ▁include ▁mental ▁and ▁physical ▁health ▁problems . ▁M isf it ▁can ▁also ▁lead ▁to ▁lower ▁product ivity ▁and ▁other ▁work ▁problems . ▁The ▁P – E ▁fit ▁model ▁was ▁popular ▁in ▁the ▁ 1 9 7 0 s ▁and ▁the ▁early ▁ 1 9 8 0 s ; ▁however , ▁since ▁the ▁late