The paper investigates the question whether constitutions are a proxy for institutional quality. It provides a discussion of institutions and states that constitutions are an example of a formal institution. As any other formal institution, constitutions are also influenced by countries’ informal institutions, including customs and belief systems. The novel content analysis goes beyond the often-used constitutional characteristics of government systems and electoral rules. In addition to the mentioned characteristics, the length, the number of revisions, and over 30 additional characteristics are coded for 109 constitutions, such as state religion and religious freedom as well as referring to state as mother, father or holy. Based on the co...