Principles of Macroeconomics

The branch of economics which studies the economy of a nation or a region as a whole is called macroeconomics. Macroeconomics deals with the large scale repercussions of micro decisions in terms of gross domestic product (GDP), consumer price index (CPI), unemployment rates and international trade. GDP can be defined as the sum of total money spent by all the citizens of a country in a given year. CPI measures the average change in prices over time that consumers pay for a basket of goods a...