Who devided the economics into two parts? 

The model and concepts used to develop the economics of international trade are:

The field of economics is traditionally divided into two broad subfields:

 

A.National economics and international economics.

B.Consumer economics and producer economics.

C.Private sector economics and public sector economics.

D.Microeconomics and macroeconomics.

The field of economics is traditionally divided into two broad subfields. Which are the two subfields of economics?