The Growth Rate of Cities: From Agricultural to Industrial Towns

Dialogues économiques
According to the World Bank, cities account for only 55% of Earth’s population, and generate more than 80% of the global GDP. They also often have a high economic growth. An Oxford study estimated Paris’ growth rate between 2019 and 2035 to be approximately 1.7%. But how can we explain this urban economic growth? The economists Christian Ghiglino, Kazuo Nishimura, and Alain Venditti aim to respond to this question by using a model that combines two major economic theories.
May 25th 2022

Previously issued

  • Press

In Spain, economic policy has been conducive and has benefited from favourable circumstances

Only in French - An op-ed by Cecilia García Peñalosa (CNRS, EHESS, AMSE) and Alain Trannoy (EHESS, AMSE) published in the newspaper Le Monde.
December 22nd 2025
  • 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