He studied political economics , business management and political science in Munich and Mainz , completing his degree as a graduate economist in 1968 .
Pieroth passed the Abitur exam at Stefan - George - Gymnasium in Bingen in 1953 .
Pieroth studied political economics , business management and political science in Munich and Mainz , completing Pieroth 's degree as a graduate economist in 1968 .
Pieroth passed the Abitur exam at Stefan - George - Gymnasium in Bingen in 1953 .