Pour Megan McArdle, l'existence de la Belgique en tant qu'Etat paraît moins nécessaire depuis l'avènement de l'euro:

Now that the European Union has taken over the currency, as well as many of the trade and customs functions of traditional federal governments, Belgium as a state suddenly looks a lot less necessary. One wonders if the current era of economic integration (assuming it continues) might not bring increasing political balkanization.