%A NIM. 14820045 FARAH SAUFIKA PRAMUDITA %O Dr. Misnen Ardiansyah, S.E., M.Si., %T THE EFFICIENCY OF ISLAMIC BANKS IN INDONESIA SINCE 2012 TO 2016 AND INFLUENCE TO ITS MARKET SHARE USING PRICE AND PROMOTION AS MODERATING VARIABLES %X The purpose of this research is to determine the relationship between efficiency and market share, with price and promotion, as parts of marketing strategy by Philip Kotler, being its moderating variables. The method in this research is quantitative research using DEA (Data Envelopment Analysis) and regression analysis. The sample contains of twelve Sharia Commercial Banks which own a legal business permit in the observed years and have a complete required data of input and output variables. The finding suggests that, in year of 2012 to 2016, the efficiency of Islamic banks have a positive statistically significant relationship toward market share. It also results that both price and promotion variables support to be quasi moderator and showing output of statistically significant relationship toward market share. According to the finding, it can be concluded that Islamic banks can improve their market share by increasing their efficiency, price, and promotion simultaneously, but that is not the only element. There are many other considerations to increase the market share of Islamic banks in Indonesia. %K Islamic banking, Data Envelopment Analysis, DEA, Efficiency, Market Share, Regression, Price, Promotion, Moderator Variable. %D 2018 %I UIN SUNAN KALIJAGA YOGYAKARTA %L digilib30101