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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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PhD Defence

14 December 2020

Giffona Justinia will defend her PhD on "Impacts of digital technologies on farms in France" on December 15th, 2020 at 1:30 pm by videoconference.

Giffona Justinia will defend her PhD in front of the following jury:

  • Pierre Labarthe (INRAE), referee
  • Julien Salanié (Université de Saint Etienne), referee
  • Laure Latruffe (INRAE), examinator
  • Damien Rousselière (Institut Agro AGROCAMPUS OUEST), supervisor
  • Nejla Ben Arfa (ESA), co-supervisor
  • Mohamed Ghali (ESA), co-supervisor


Digital technologies are still a recent area of agricultural economics. Using a scoping review method, we were able to propose a typology of digital technologies studied in the academic literature in four groups: connection, registration, decision and execution. In the dairy sector, these innovations increase production but the benefits are inversely proportional to the intensity of production. In addition, Internet connection technologies and decision support tools are beneficial to all farmers whether they are users or not. Indeed, thanks to their proximity, they are able to capture more of the effects of technological spillovers. It has also been found that there is a rebound effect in terms of the impact of these technologies on effluent production. The contributions of the thesis are that, first of all, it represents the first estimate, to our knowledge, of the impacts of digital technologies on farms on a national scale. As the data are still very recent, matching several sources was our first challenge. Our original estimation methods allowed us to address endogeneity in a cross-sectional analysis. Finally, the last contribution is to make recommendations to enable public policies to better understand the effects of new technologies and to allow public authorities to promote the best of them.