Local Transparency: Are Non-Partisan Mayors Making the Difference?

ABSTRACT The central question guiding this research is whether municipal councils governed by mayors with party membership differ significantly in their transparency from those governed by non-partisan mayors. Although this is an exploratory study that does not seek to test hypotheses, there are ongoing lively theoretical debates about the implications stemming from the decline of traditional parties and partisanship, and the rise of independent local lists (ILLs) (as well as the rise of new challenger parties). Dealing with unbalanced panel data from 308 Portuguese municipal councils from 2013 to 2017, we use a Bayesian hierarchical model based on a Beta regression. Our findings suggest that there are no differences in local transparency levels—as measured by the Municipal Transparency Index—in municipal councils governed by mayors with party membership and those by non-partisan mayors. Given that transparency is a common concern for both party- and non-party–aligned local governments as well as voters, this preliminary analysis asks important substantive questions about the promises that many ILLs make about their ability to clean up party politics and return power to “the people.”