We fully agree that there is not a single path or model for building public governance that favors sustainability. In this regard, we have stressed, on several occasions, that social contract formation takes place in polycentric ways at different levels (always context-specific and path-dependent). Challenges related to sustainability, social inequalities, or public governance, regardless of whether it takes place in the North or South, call for transformation-oriented forms of governance which are capable of dealing with complexity, ambiguity, and uncertainty.
Further problematize the discussions/debates that are being mobilized in the article. The theoretical debates and the literature on "social contract", "public governance" and "sustainability" are vast and controversial. It is important that the authors also go into the challenges, the difficulties, the dilemmas in these debates. To mention just one aspect, the text makes little or no reference to the differences and nuances between the realities and contexts of the countries of the North and the South, nor to the relationship between sustainability and social inequalities or between sustainability and democracy. Only in these aspects it is possible to bring several elements that problematize the discussion and show that there is not a single path or model for building public governance that favors sustainability.