Go to a source, such as the CIA World Factbook or the World Bank, and collect per capita income and population data for each of the nations listed in Table 4–1. Compare the average per capita income of the common law countries with the average per capita income of the civil law countries. Based on the discussion in the chapter, identify at least two other factors that you think are important to take into account when assessing whether the differences you observe are likely due to the systems of the countries.