Food waste (FW) has become a major concern in the global era, which is affecting the societal environment and economy consistently. Rising population and urbanization have increased food production and consumption, especially in developing countries like Bangladesh. Due to limited recycling and...

Regressors often have heterogeneous effects in the social sciences, implying unit-specific slopes. OLS is frequently applied to these correlated coefficient models. I first show that without restrictions on the relation between slopes and regressors, OLS estimates can take any value including...