Abstract
This paper examines the differences in the impact of ownership types and economic sectors on the business
efficiency of 4,733 enterprises in Vietnam by the year of 2015. By the method of analysis of variance (ANOVA),
it is shown that while types of ownership, foreign, state and private ownership, have a significant and different
impact on the performance of businesses, the difference in economic sectors does not affect the enterprise
efficiency. In addition, when testing simultaneous effect of these factors, some findings are as follows:
private-owned enterprises’ efficiency in the manufacturing and service sectors is better than those in agriculture,
forestry and fishing sector; conversely, foreign invested enterprises operating in agriculture, forestry and fishing
sector own better performance than theirs in manufacturing and service sectors; state-owned enterprises in
manufacturing and service sectors is very less efficient than theirs in agriculture, forestry and fishing sector.