This research is t o analyze the injluence of investment (FDI and DI) and exchange rata jluclualion lo injlation in Indonesia by asing Ordinary Leasl Square (OLS) method and dala used is time series secondary datafrom 19S0-2008, ihal are injlation, investmenl (FDI and DI), and e.rchange rate. Afler OLS is done, the best model used in this research is autoregressive mode! without constant variab…