Abstract: The objective of this research is to assess the level of competition and the factors affecting the level of competition of Vietnam commercial banks for the period from 2008 - 2016. The authors measure Lerner Index according to the formula of Abba Lerner (1934) to proxy level of competition and uses SGMM for table data to analyze the factors affecting the level of competition of Vietnam commercial banks for the period of 2008 - 2016. The results show that factors that increase the level of competition among banks include equity, outstanding loans, cost-effectiveness, bank size, economic growth rate and inflation. Meanwhile, high return on equity has the effect of reducing competition pressure. |