"A strong middle class really makes a country more stable."
Poverty and injustice are important themes for Major Wietse Kooistra. They determine most of the choices this investor makes. "The things I do have to be right in both the heart and the head," he says. That applies to his job, but also to the financial decisions he makes. "A loan to PlusPlus is not guaranteed, but it is a reliable investment. The transparency and sustainability really appeal to me."