PEMILIHAN MODEL ARFIMA-GPH DAN INTERVENSI MULTI INPUT PADA INDEKS HARGA PERDAGANGAN BESAR INDONESIA

IHPBI is an early indicator in consumer price analysis. When the increases, it results inflation. inflation occurs, Indonesia's economic stability begins to be disturbed, so order suppress inflation, government raises interest rates and when circulation of money decrease, prices goods services will return normal. This research see next 3 years through ARFIMA method multi-input intervention with condition that data must contain long memory have pattern. done determine selected model, namely (1,d,0) a d value 0.1579, January 2009 ARIMA (1,1,1) (b=0, s=1, r=1) November 2013 (1,1,2) order(b=1, r=0).