Before presenting an answer to the question in this article's title, we start by showing the origins of "eco-efficiency". The concept was born in the late 1980s and gained more relevance in the 1990s. Ecoefficiency means "the efficiency with which ecological resources are used to meet human needs" (Organization for Economic Cooperation and Development, OECD (1998)).

Almost a year has passed since the first EoF Summer School in Gubbio. As we are awaiting the next one and preparing for the meeting in Assisi, let me use this opportunity to look back and remember. 

There are not two separate crises, one environmental and the other social, but rather one complex socio-environmental crisis (LS.139). Given the complexity of the matter, an integral approach is required for the solution and attention of the problems as well as for taking care of nature.

How early Franciscan economic thought anticipated the debate on the paradox of malnutrition.