Self-service technologies have been widely adopted in those industries involving delivering physical products by services, in which consumers evaluate the product both from the product value and the service value. A typical service delivery system usually involves sales agents or self-service...

Reducing urban-rural gaps in child health and nutrition is one of the most difficult challenges faced by many countries. This paper evaluates the impact of the Nutrition Improvement Program (NIP), a large-scale school meal program in rural China, on the health and nutritional status of...