Macroeconomics, can be thought of as the “big picture” version of economics. Rather than analyzing individual markets, macroeconomics focuses on aggregate production and consumption in an economy, the overall statistics that macroeconomists miss. Some topics that macroeconomists study include
To study economics at this level, researchers must be able to combine different goods and services produced in a way that reflects their relative contributions to aggregate output. This is generally done using the concept of the gross domestic product (GDP), and goods and services get weighted by their market prices.
According to Britannica.com Macroeconomics, study of the behaviour of a national or regional economy as a whole.
It is concerned with understanding economy-wide events such as the total amount of goods and services produced, the level of unemployment, and the general behaviour of prices.
Unlike microeconomics—which studies how individual economic actors, such as consumers and firms, make decisions—macroeconomics concerns itself with the aggregate outcomes of those decisions.
For that reason, in addition to using the tools of microeconomics, such as supply-and-demand analysis, macroeconomists also utilize aggregate measures such as gross domestic product (GDP), unemployment rates, and the consumer price index (CPI) to study the large-scale repercussions of micro-level decisions.