
In private international law, the concept of the “weaker party” helps address power imbalances in cross-border relationships. These imbalances affect those who are structurally or economically disadvantaged and more vulnerable to exploitation or legal hardship. Traditional weaker parties include consumers, employees, insured persons, tenants, children, and spouses, all of whom are protected by EU instruments like Rome I, Rome II, Brussels I bis, Brussels II ter, and various Hague Conventions. These frameworks limit the stronger party’s ability to impose foreign laws or courts, safeguarding the weaker party’s home legal protections.






Other vulnerable groups like SMEs may not fit classic categories but still face unfair treatment in transnational disputes – whether through unequal contracts, legal complexity, or access barriers.
WEAKER PIL investigates all weaker parties, traditional or not, and analyses when they should be granted protection – and how.
So far, we have looked at two different types of weaker parties. Click on a button to get more information about a project:
