Pro-Environmental Determinants of Waste Separation: Does the Interaction of Human and Social Capital Matter? Evidence from Italian Provinces

Sustainable practices should include proper incentives and involve a large part of the population to achieve a significant environmental impact. Human capital is considered one of the factors that affect pro-environmental behaviours: more educated people tend to be more aware of waste management processes. Another factor is social capital, as far as the feeling of belonging to a society might involve people in adopting sustainable practices. However, these two concepts are strictly related and deserve to be studied as complementary to each other. Thus, this article investigates whether social capital might support waste recycling when interacting with the accumulation of human capital at a provincial level. Our analysis relies on a unique dataset of 103 Italian provinces for the period 2004-2017. Results suggest that while human and social capital has a negative effect on waste separation, their interaction turns out to be positive and even stronger when we consider Southern provinces with respect to the whole country. This finding might be of interest not only from an academic viewpoint, but also from a policymaker's perspective to alleviate the pledge of waste separation, which has affected the South of Italy in recent decades.