O'Toole, C., E. Morgenroth and T. Ha (2015). Investment Efficiency and Enterprise Ownership in Transition: Evidence from Microdata in Vietnam, The Vietnamese Economy in Perspective: An Empirical Analysis, chapter 6, pp. 185-216, Hanoi: Thế Giới, https://www.esri.ie/publications/investment-efficiency-and-enterprise-ownership-in-transition-evidence-from-microdata