The COVID crisis has increased the world’s heterogeneity in all its dimensions

The COVID crisis has increased all forms of heterogeneity: Between countries, as some countries have been hit much harder than others (commodity-exporting countries, countries with a savings shortfall, countries highly exposed to sectors in difficulty such as tourism, aerospace, etc.); Within each country, between economic sectors, with some sectors hit hard by the crisis (air transport, aerospace, automotive, tourism, traditional retail, etc.) and others enjoying growth (IT services, security, pharmaceuticals, online retail, etc.); Within each sector, between protected employees (with a long-term employment contract) and unprotected employees or self-employed workers (short-term employment contracts, temp workers, etc.); Between age groups, due to the numerous problems facing young people (difficulty entering the labour market, rising real estate prices, short-term employment contracts). Increasing multi-dimensional heterogeneity is a major source of tension in a low-growth world . It also requires new economic policies.