An Empirical Test of a Resources Deployment Portfolio (RDP) Approach to Business Group ROE Decomposition

This study proposes a resources deployment portfolio (RDP) approach to decomposing return on equity (ROE) for business analysis. The five components are return on operating equity (RoOE), return on financial equity (RoFE), return on other equity (RoXE), return on influencing equity (RoIE), and R&D intensiveness (R&DI). Empirical results demonstrate that RDP decomposition offers substantial improvement over DuPont decomposition in explaining market valuation. Confirming the perceived sustainability, RoOE is the most consistently significant component for both long-term and short-term value creation. In line with prior research findings, R&DI is generally significant in contributing to long-term value creation but is not significant for short-term value creation.