We tried to find out with this experiment, with a little help from English parish councils. See the full article here.
‘How effective are systems of transparency, such as Freedom of Information (FOI) requests? The ambitious aims of FOI laws hinge on whether requests produce the desired information for the citizens or groups that use them. The question is whether such legally mandated requests work better than more informal mechanisms. Despite the high hopes of advocates, organizational routines, lack of awareness or resistance may limit legal access and public bodies may seek to comply minimally rather than behave in concordance with the spirit of the law. This article reports a field experiment that compared FOI requests and informal nonlegal asks to assess which is more effective in accessing information from English parish councils. The basic premise of statutory access is borne out. FOI requests are more effective than simple asks and the size or preexisting level of openness of a body appears to make little difference to their responsiveness. FOI requests are more effective in encouraging bodies to do more than the law asks (concordance) than encouraging more minimal levels of legal cooperation, when a body simply fulfils its obligations to varying degrees (compliance). This finding indicates high levels of support for FOI once it is embedded within the system.’