Open data as legitimation tools for public institutions?

The paper examines whether Open Data can be an instrument of legitimization of public institutions.
It has been hypothesized that broadening participation of citizens may be an antidote to the legitimacy deficit of the the institutions.
The opening to the public of the data held by the administration could facilitate the involvement of citizens both in decision-making processes and in practices related to the management of services. In the face of the theoretical and practical problems of opening data, we look at the impact that opening can produce both in terms of the democracy of the system and its efficiency. These two aspects, however, can be both complementary and conflicting.