Ekvivalensprincipen, The doctrine of equal value
The meaning of the doctrine of equal value is that balance must exist between the performances of the contracting parties. The doctrine can be divided into two parts, the original imbalance and imbalance that has arisen. The original imbalance means that the imbalance already existed when the contract was concluded. Instead, imbalance that has arisen means that the imbalance arose after the contra
