▁to ▁a ▁cut - off ▁date . ▁ ▁References ▁ ▁Further ▁reading ▁▁▁▁▁▁ ▁Al ger , ▁J . ▁( 2 0 0 4 ) ▁The ▁Rel ative ▁Age ▁Effect : ▁The ▁In flu ence ▁of ▁B irth ▁Date ▁on ▁In clusion ▁and ▁Ex clusion ▁in ▁Washington ▁State ▁Youth ▁Soccer . ▁United ▁States ▁Sports ▁Academy . ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁▁▁▁ ▁Best ers , ▁L . M . ▁( 2 0 1 2 ). ▁The ▁Rel ative ▁Age ▁Effect ▁in ▁El ite ▁Dutch ▁Track ▁& ▁Field : ▁The ▁Ro le ▁of ▁Performance ▁Based ▁Selection ▁Systems . ▁Masters ▁Th esis ▁in ▁Econom ics . ▁Department ▁of ▁Econom ics , ▁T il burg ▁University . ▁▁▁▁▁▁▁ ▁Campbell , ▁T . ▁( 2 0 1 3 ) ▁In - school ▁ability ▁grouping ▁and ▁the ▁month ▁of ▁birth ▁effect : ▁Pre lim inary ▁evidence ▁from ▁the ▁Mill en ni um ▁C oh ort ▁Study . ▁C LS ▁Working ▁P aper ▁ 2 0 1 3 / 1 . ▁London : ▁Centre ▁for ▁Long itud inal ▁Studies . ▁▁▁▁▁▁▁▁▁ ▁C raw ford , ▁C ., ▁De arden , ▁L ., ▁Meg h ir , ▁C . ▁( 2 0 0 7 ). ▁When ▁You ▁Are ▁Born ▁Mat ters : ▁The ▁Imp act ▁of ▁B irth ▁on ▁Child ▁C ogn itive ▁Out comes ▁in ▁England . ▁Centre ▁for ▁the ▁Econom ics ▁of ▁Education , ▁London ▁School ▁of ▁Econom ics . ▁▁▁▁▁▁▁ ▁Dean er , ▁R ., ▁Low en , ▁A ., ▁Co ble y , ▁S . ▁( 2 0 1 2 ).