<abstract> <p>Current global problems such as the loss of soil fertility and biodiversity and the growth of the world's population for which health and food sovereignty must be guaranteed, make it clear that it will be essential to spread innovations to increase not only productivity but also the quality of production in order to meet these challenges. However, this will not be enough if profound changes are not made in all systems and more sustainable food systems are not built. Organic agriculture is widely considered a more sustainable production system. However, despite the growing attention of consumers towards organic products and the increase in the area devoted to organic farming in recent years, its growth is not homogeneous among and within countries. Therefore, in this work, we investigate the main drivers and barriers to adopting organic farming, first analysing the literature and then administering a questionnaire to a sample of 202 conventional farmers in the Pesaro-Urbino province (Italy). The survey data show that the adoption of organic farming is fostered by the farmer's attitude towards this production method's social and environmental sustainability. The main hindering factors are the farmer's personal characteristics, such as old age, lower education level, perception of bureaucracy, and the farm's inadequacy of technical structures.</p> </abstract>

The aim of this study is to analyse the volatility of agricultural commodity prices and assess the effectiveness of supply chain contracts as possible tools to prevent it. The study refers to the cereal sector, which is of vital importance for the agri-food system of the Mediterranean area. Since Italy is the world’s largest producer of durum wheat semolina, the proper functioning of the Italian durum wheat supply chain is central to this investigation. The study was conducted following two different paths of analysis: (1) the calculation of volatility indices using annual and monthly data of durum wheat prices, both organic and industrial, observed in the Bologna Commodity Exchange (AGER); (2) the analysis of two organic durum wheat supply chain contracts, defined by a cooperative involving hundreds of Italian farms mainly from the Marche region and by an agricultural consortium operating in the Adriatic regions. Despite the limited number of cases examined, the present study shows how supply chain contracts can be valid tools for building stable relationships between the various players, from production to processing and distribution, guaranteeing farms fairer and more remunerative raw material purchase prices and higher quality standards.

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