An attitude structure approach to assessing sustained use and intention to expand in subsidy-based blue-green infrastructure programs
摘要
Household-scale Blue–Green Infrastructure (BGI) programs in developing countries are commonly implemented through government subsidies; however, their long-term use after implementation remains underexplored. This study examines post-implementation sustained use of household BGI by applying an attitude structure approach that distinguishes cognitive, affective, and conative dimensions. Primary data were collected from beneficiaries of a government-supported Rainwater Harvesting–GAMA-RainFilter (RWH-GRF) program in Daerah Istimewa Yogyakarta, Indonesia. A total of thirteen indicators were analyzed using descriptive statistics and Partial Least Squares Structural Equation Modeling (PLS-SEM). The results indicate that affective and conative components are more strongly associated with sustained use and maintenance behavior, while the cognitive component shows a weaker and partially insignificant relationship. Although households demonstrate sustained use of existing systems, their intention to expand BGI independently remains limited. This study contributes methodologically by operationalizing an attitude-structure framework to assess post-adoption BGI outcomes. Substantively, the findings suggest that sustained use of subsidy-based BGI is driven more by emotional engagement and behavioral commitment than by cognitive awareness alone, highlighting the need for policy interventions that go beyond knowledge-based approaches.