- Prof. Patrícia Oom do Valle – Faculdade Economia – Universidade do Algarve
- FCUL (DEIO) – Campo Grande – Bloco C6 – Piso 4 – Sala 6.4.30 – 14h 30m
- Quarta-feira, 15 de Março de 2006
A structural equation model (SEM) has two major features. Firstly, based on a theoretical model that must be defined on a priori ground, SEM allows to estimate a set of separate but interdependent multiple linear regressions, in which the same variable may be independent in one equation and dependent on another. Secondly, SEM enables the inclusion of latent variables in the analysis. A latent variable is not directly observable but can be indirectly measured or inferred through one or more observed or indicator variables. This study merges insights from two well-known attitude-behavior theories – the theory of planned behavior (Ajzen, 1985) and the model of altruistic behavior (Schwartz, 1977) – with elements from two broader models from environmental psychology – the model of environmental behavior (Grob, 1995) and the model of environmental concern (Stern, Dietz and Guagnano, 1995) – to propose a comprehensive structural equation model to explain recycling behavior. The specified model is estimated using data from the most recent national survey performed in Portugal on the subject. In general, results support the use of the theory of planned behavior as a basis for modeling recycling participation. However, the integration of this theory with the Schwartz’s model is only partially achieved. Another important finding is that recycling behavior is indirectly determined by personal psychological features, such as social conscience, but not by general ecological attitudes. KEYWORDS Structural equation modeling, Recycling behavior, behavioral theories.