February 2000 - Some say that democracy is more likely to survive under parliamentary governments. That result is not robust to the use of different variables from the Database of Political Institutions, a large new cross-country database that may illuminate many other issues affecting and...

This article introduces a large new cross-country database, the database of political institutions. It covers 177 countries over 21 years, 1975-95. The article presents the intuition, construction, and definitions of the different variables. Among the novel variables introduced are several...