Gazi İktisat ve İşletme Dergisi, cilt.8, sa.3, ss.469-487, 2022 (Hakemli Dergi)
In this study, attitudes and behaviors towards the separation of
household waste were investigated with the help of a model proposed
within the scope of moral norm, environmental benefit, facilitating
conditions, existing infrastructure adequacy added to the Theory of
Planned Behavior (TPB). In the proposed Extended Household Waste
Separation Model (HWSM), the exogenous latent variable of moral
norm is designed as an estimator of the variables of attitude, subjective
norm and perceived behavior, control which are the antecedents of the
TPB model. In the model, the environmental benefit of waste
separation, conditions that facilitate waste separation, and existing
infrastructure adequacy are included as predictors of behavior towards
waste separation. The sample consisted of 350 units and the data were
collected through an online questionnaire. It was determined that
40.7% of the participants in the sample resided in Eskişehir, 8.7% in
Istanbul, 8.2% in Bursa, 7.4% in Antalya, 6.5% in Ankara and 5.6% in
Izmir. The fit of the proposed model and the hypothesis testing of the
structural relationships were performed using partial least squares
structural equation modeling (PLS-SEM). As a result of the path
analysis, the effect of only environmental benefit on behavior was not
found to be significant and it was determined that only one of the 13
hypotheses was not supported. When the PLS-SEM compliance
criteria related to the suitability of the proposed HWSM were
examined, it was evaluated that the model was compatible. One of the
remarkable results of the study is that the direct effect of
environmental benefit on waste behavior is not significant, but the
relationship is determined as positive and significant thanks to the full
mediation of the intention variable. In addition, perceived behavioral
control appeared to play a moderator role in the relationship between
moral norm and waste sorting behavior. In addition, it was determined
that a one-unit increase in facilitating conditions and existing
infrastructure adequacy would cause an increase of 0.328 and 0.234
units, respectively, in household waste separation behavior.