IIRC this is the situation (or with a slightly different mechanism such as regulations affecting only large companies) in e.g. France and some other European co

IIRC this is the situation (or with a slightly different mechanism such as regulations affecting only large companies) in e.g. France and some other European countries, but an unintended consequence is that the ownership structure of large corporations becomes complex and usually spread across multiple countries, such as the infamous tax-avoidance strategies used by IKEA. This creates a barrier to entry that makes large actors more entrenched in some cases. The best way to see this in action is to compare the ages of the largest European companies (e.g. BASF) with the ages of the largest American companies (incl. Amazon, Google); the largest American companies are generally much younger.