L’obbligo di rinegoziazione degli accordi amministrativi. Due modelli a confronto

The article analyzes the institution of administrative agreements and the remedies avail- able in the event of contingencies that compromise the balance between performanc- es of the parties. In particular, the spread of Covid-19 is taken into consideration as an example of occurrence and it is verified which civil law instruments have been used or can be used as remedies for the hardship. The article takes for examples two categories of agreements, whose performances have been affected in different ways by the ad- vent of Covid-19: “collaboration agreements” and “contract-agreements” concluded by health companies with private individuals. The study of the two cases is aimed at verify- ing whether differentiated solutions to the same problem of performance imbalance can be prepared for different types of agreement.