The effects of transparency regulation on political trust and perceived corruption: evidence from a survey experiment

Scholarly evidence of transparency's beneficial effects on trust and perceptions of corruption remains debated and confined to the study of public administration. We contribute to this debate by extending the study of its effects to transparency legislation concerning members of parliament (MPs), political parties, and business interest groups. In an online experiment conducted in Ireland with 1373 citizens, we find that transparency in political donations improves trust in political parties, while asset declaration for conflict of interest prevention reduces perceptions of corruption toward MPs. However, transparency in lobbying is found to have no impact on attitudes toward business interest groups. This supports the common expectation that transparency improves political trust and reduces perceptions of corruption, but also confirms its complex effects. The study improves our understanding of transparency beyond open government providing an evaluation of different regulatory policies aimed at making the activities of parties, MPs, and lobby groups transparent.