Do institutions advocate tax simplification? Insights from a panel of 88 countries

Abstract

The complexity of taxes has been widely discussed in the literature and can be defined and measured in various ways depending on one’s perspective. Institutions play a crucial role in shaping the strategic environment and understanding them is crucial in understanding the policy process. When designing taxes, it is vital to consider how institutions influence tax complexity. In this empirical study, we take an institutional approach to examine what extent the institutional quality supports the tax simplification process. Using the system generalised method of moments (system GMM) for a dynamic panel of 88 countries, we show that higher institutional quality seems to be associated with a lower degree of tax complexity, regardless of income levels and legal origins. These findings are robustly consistent across a variety of specifications and institutional measurements. To that end, we make policy recommendations on tax administration.