Social networks: who counts most?

Dialogues économiques
March 2019, Paris region. Two men are violently dragged out of a van and beaten. The cause: a rumour spread on social media, claiming that “white vans” were kidnapping children. Analysis of social media can help us to understand how such rumours spread: distinguishing between the target and the source within the network can contribute to a better understanding of how such information can be disseminated, according to the results of a recent theoretical study.
October 27th 2025

Previously issued

  • Dialogues économiques

The True Price of CO₂

In 2024, a grim record was set: it was the hottest year ever recorded on Earth. The signs of climate upheaval are now visible to all, as global warming manifests itself in a rapid rise in extreme weather events. In theory, the solution is straightforward: we must stop burning fossil fuels. In practice, phasing out energy sources so firmly entrenched in contemporary societies is an immense challenge. To reduce CO₂ emissions, economists — trained in cost–benefit analysis — can help policymakers design strategies that are both effective and socially acceptable.
December 10th 2025
  • Press

Healers are easy targets

Only in French- An op-ed by Daniel Ventosa-Santaulària (CIDE), visiting professor at Aix-Marseille School of Economics, published in La Provence.
December 04th 2025
  • Press

How did taxpayers react to the reform of the wealth tax at the beginning of Macron’s presidency?

Only in French - An article in Sciences Humaines magazine focusing on the thesis of Ségal Le Guern-Herry (amU, AMSE)
December 01st 2025