What is the definition of macroeconomics?

The definition of macroeconomics is centered on understanding the economy at a large scale, which encompasses overall economic phenomena such as national income, unemployment rates, inflation, and economic growth. It looks at broad aggregate indicators and factors that affect the economy as a whole rather than individual markets or sectors. This branch of economics is crucial for analyzing how various elements interact within the economy, providing insights into policy decisions and economic strategies that can impact the entire population.

In contrast, the other options focus on narrower aspects of economics. Individual economic behaviors and small market trends pertain to microeconomics, which studies the decisions made by individuals and firms. Similarly, while international trade dynamics are important, they represent a specific area within macroeconomics rather than the field as a whole. Therefore, the correct choice emphasizes the comprehensive nature of macroeconomics, highlighting its role in studying and interpreting the larger economic landscape.