There is evidence of economic writing that dates all the way back to the Mesopotamian era. The development of modern economics is largely due to two groups which were known as the physiocrats and the mercantilists. These groups help develop capitalism in Europe in the 16th century.

Croatia, officially the Republic of Croatia, is a unitary democratic parliamentary republic at the crossroads of Central Europe, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb.

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.