TY - JOUR AB - Purpose– In an attempt to enrich the literature of the efficiency of Islamic banks, this study aims to empirically investigate the efficiency of the fully fledged Islamic banks as well as Islamic windows in Malaysia.Design/methodology/approach– This study measures the technical and cost‐efficiencies of these banks using the non‐parametric frontier method, data envelopment analysis (DEA).Findings– The findings show that, on average, the efficiency of the overall Islamic banking industry has increased during the period of study. The study also revealed that, although the fully fledged Islamic banks were more efficient than the Islamic windows, they were still less efficient than the conventional banks. Finally, Islamic windows of the foreign banks were found to be more efficient than Islamic windows of the domestic banks.Originality/value– The findings of this study will provide some empirical insights as to how these two modes of Islamic banks had fared in the competitive environment from 1997 to 2003. VL - 24 IS - 1 SN - 0828-8666 DO - 10.1108/08288660810851450 UR - https://doi.org/10.1108/08288660810851450 AU - Mokhtar Hamim S. Ahmad AU - Abdullah Naziruddin AU - Alhabshi Syed M. PY - 2008 Y1 - 2008/01/01 TI - Efficiency and competition of Islamic banking in Malaysia T2 - Humanomics PB - Emerald Group Publishing Limited SP - 28 EP - 48 Y2 - 2024/03/28 ER -