The Washington-based CATO Institute published in November 2016 "The Human Freedom Index 2016: A Global Measurement of Personal, Civil, and Economic Freedom" by Ian Vasquez and Tanja Porcnik.
The study evaluated 159 countries, including 46 in Africa. It included Kenya, Uganda, Tanzania, and Ethiopia but omitted all other countries in the Horn of Africa. On personal freedom, Kenya ranked 105, Tanzania 106, Uganda 128, and Ethiopia 134. The highest ranking African country was Ghana at 44. On economic freedom, Uganda ranked 54, Kenya 71, Tanzania 93, and Ethiopia 145. The highest ranking African country was Mauritius at 5. The human freedom and democracy index ranked Kenya at 88, Tanzania at 99, Uganda at 100, and Ethiopia at 142. The highest ranking African country was Mauritius at 34.