The new abnormal: Identifying and ranking anomalies in the land trade market

Interdonato Roberto, Bourgoin Jeremy, Grislain Quentin, Tagarelli Andrea. 2022. The new abnormal: Identifying and ranking anomalies in the land trade market. PloS One, 17 (12):e0277608, 18 p.

Url - autres données associées : https://gitlab.irstea.fr/roberto.interdonato/lsla-networkanalysis / Url - jeu de données - Entrepôt autre : https://landmatrix.org/list/deals

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie; Staps

Résumé : Large-scale national and transnational commercial land transactions, or Large-Scale Land Acquisitions (LSLAs), have been gaining a lot of academic attention since the late 2000s and since the reported rush for land, resulting in turn from an increase in demand for arable land. If many data exist to characterize land deals, the analysis of investment networks remain limited and predominantly portrays power asymmetries between countries from the Global North investing in the Global South. The aim of this work is to perform a deeper investigation on the land trade market, specifically focusing on cases that do not follow such narratives. For instance, almost 25% of the countries included in the transnational land trade network do not follow a strict investor/target dichotomy, thus being characterized by a double role, i.e., they both acquire and cede land in the transnational context. In order to globally acknowledge for what was currently considered as abnormal cases, we model open access data about LSLAs extracted from the Land Matrix Initiative (LMI) open-access database into a network graph, and adapt an eigenvector based centrality method originally conceived for online social networks, namely LurkerRank, to identify and rank anomalous profiles in the land trade market. We take into account three different network snapshots: a multi-sector network (including all the transnational deals in the LMI database), and three networks referring to specific investment sectors (agriculture,mines and biofuels). Experimental results show that emerging economies (e.g., China and Malaysia) play a central role in the land trade market, by creating alternative dynamics that escape the classic North/South one. Our analyses also show how African countries that are often seen as targets of land trade transactions in a specific sector, may often acquire foreign land in the context of investments in the same sector (i.e., Zimbabwe for biofuels and the Democratic Republic of Congo for the mining sector).

Mots-clés Agrovoc : marché foncier

Mots-clés libres : Network analysis, Complex networks, Large scale land acquisitions, Land Matrix, Acquisitions de terres à grande échelle

Classification Agris : E11 - Économie et politique foncières

Champ stratégique Cirad : CTS 5 (2019-) - Territoires

Auteurs et affiliations

• Interdonato Roberto, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0002-0536-6277 - auteur correspondant
• Bourgoin Jeremy, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0002-6871-1859
• Grislain Quentin, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0002-1829-2203
• Tagarelli Andrea, University of Calabria (ITA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603175/)

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