Emergence and Dynamics of Short Food Supply Chains
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Emergence and Dynamics of Short Food Supply Chains Arnaud Z. Dragicevic1,2 Accepted: 18 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Through the consideration of a stochastic matching model dependent on a probability function built from the Heron’s formula, we analyze the emergence and the dynamics of short agrifood sale circuits in form of time-evolving random hypergraphs. These marketing circuits, which are used as a supportive policy for promoting local food consumption, typify short distribution channels. Although bipartite matching can be easily derived from the framework, we move our focus on the matching of triplets of players representing buyers, retailers and sellers. Their conditional pairings with respect to standard and social preferences are both taken into consideration. Our results show that the emergence of short food supply chains is triggered by a threedimensional stochastic matching mechanism. Their time evolution is found to be governed by both stable and unstable dynamics, the latter being subject to bounded antiperiodic oscillations. Via the use of a Poisson process, we then redirect our interest toward spatial randomness and the number of circuits attainable in a defined territory. The model unveils a restricted spread of short circuits over the entire territory, which, in expectation, can only be a partial substitute for long supply chains. The outcomes show consistency with the agribusiness patterns currently observable in France. Keywords Bioeconomics · Short food supply chains · Stochastic matching · Spatial randomness
1 Introduction The present paper aims at analyzing the emergence and the dynamics of the French commodity production, marketed through short circuits, among which can Arnaud Z. Dragicevic
[email protected]; [email protected] 1
IRSTEA—The Center of Clermont-Ferrand, 9 Avenue Blaise Pascal, 63170 Aubi`ere, France
2
AgroParisTech, INRA, IRSTEA, Universit´e Clermont Auvergne, VetAgro Sup (UMR Territoires), 63170 Aubi`ere, France
A.Z. Dragicevic
be included the sectors of vegetable cultivation, beef and dairy cattle, honey products and of wine-growing. The study published by Pipame (2017) explains that a short distribution channel can be any marketing strategy based on maximum one intermediary between a producer and a final consumer. In the agribusiness, short food supply chains can thus be found in various forms such as producerconsumer, producer-retailer-consumer, producer-restaurateur-consumer or as that of producer-processor-consumer. The main objectives of short distribution channels— with respect to those involving more than one intermediary—is to provide local quality products to consumers and to supply products issued from environmentally sound practices or with a minimum carbon footprint. From the economic standpoint, short circuits ensure added value to the farmers and enable the consumers to support the local economy by sustaining small farms and businesses (ENRD 2012). According to Kneafse
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