Economics is an area of study that explores topics of wealth, banking, finance, buyer and distributor trends, recessions and more. This subject deals with the production and consumption of goods and services as they relate to individuals, businesses and nations.

Botswana is located in southern Africa and has made significant progress in developing its higher education system. The discovery of diamonds substantially increased revenue for the nation, and much of this revenue has been funneled into improving schools and colleges.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.