Concerns about democratic decline and deficit have recently led to repeated calls for institutional changes that could enhance civil participation and direct voter participation in public decision-making (forms of direct democracy). An evergreen among the instruments proposed is the referendum, and in particular the constitutionally embedded referendum. This would grant a constitutional right to trigger a referendum and is something that is currently under consideration in the Netherlands. It is often assumed that constitutionally embedded referendums can correct systemic flaws in a representative democratic system, thus enhancing the overall democratic score of a country. This contribution considers these premises. By means of an empirical study, it examines whether the democracy index score of a country is related to constitutionally ratified rights to direct legislative influence of citizens, such as referendums and legislative initiatives by citizens. The initial results indicate that codifying referendum procedures as a constitutional right does indeed positively relate to the democratic scores of countries worldwide. This effect, however, does not hold true for the sample of EU countries studied.The Legitimacy and Effectiveness of Law & Governance in a World of Multilevel Jurisdiction