Reducing post-harvest food loss and waste is a major sustainability challenge in low- and middle-income countries, some of which are major agrarian economies supplying global value chains. However, there is insufficient research in this field even today. Reducing post-harvest food loss and waste is a major sustainability challenge in low- and middle-income countries, some of which are major agrarian economies supplying global value chains. However, there is insufficient research in this field even today. Economics & Business Phys.org – latest science and technology news stories