Academia has been investigating the benefits and barriers of adopting open government data. However, there are theoretical gaps about the influence that institutional factors have on OGD initiatives. Thus, the purpose of this study is to analyze the relationship between institutional dimensions and the level of openness of government data in different countries. For that, a quantitative approach, with secondary data and a linear regression model, were adopted. The results show that the performance of national OGD initiatives is associated with dimensions such as the degree of existence of a specific public policy for OGD, the existence of a freedom of information act, the development of e-government programs, participation in Open Government Partnership and government administrative quality. Therefore, beyond technical-managerial challenges, the institutional characteristics of each country make the implementation and performance patterns of OGD initiatives change case by case.
