The branch of economics that looks at the operation of a nation's economy as a whole is:

The branch of economics that looks at the operation of a nation's economy as a whole is Macroeconomics.

Explanation:

The branch of economics that has a whole look of nation,s economy is called as macroeconomics. It examines the behavior of the market system that operates nation wide. It examines and study about the things like inflation, economic growth rate, GDP, unemployment changes and national income, price levels.  

Microeconomics deals with the decision structure of an individual who make up the larger economic system. In contrast to microeconomics, macroeconomics looks at the behavior and the performance of the economy wholly and not as smaller parts.

answer; i do believe that the correct answer is ; ///are valued more highly than their cost;

answer; balance sheets;