Macroeconomics is a part of economics that measure the economy at a large scale or global scale. It covers several issues of an economy that are confronted by macroeconomics. When one speaks of the economy, it includes inflation, unemployment, tax burden, etc. Macroeconomics focuses on all these aspects of large numbers. It studies the relationship between various countries about how the policies of one country can impact the other. In simpler words, macroeconomics studies the behaviour of the national or regional economy. It concerns understanding economy-wide events like the total amount of goods and services produced, general behaviour of prices, and level of unemployment. Macroeconomics is the opposite of microeconomics as the former studies how individual economic factors like consumers and firms make decisions. Macroeconomics concerns itself with the aggregate result of such decisions. For this, tools of microeconomics are used, such as supply and demand analysis, and tools of macroeconomics, like unemployment rates, gross domestic product, consumer price index, etc.