*Written by: Romane Fortes, professor of Economics at ESEG Faculty
Macroeconomics is present in your daily life, even when you don't realize it. When food prices rise, interest rates change, or unemployment increases, all of this is part of a larger scenario that directly influences the lives of people, businesses, and the country as a whole.
But how do we understand these movements? That's precisely the role of macroeconomics: to analyze major economic phenomena and help interpret what lies behind government decisions, market fluctuations, and the opportunities (or challenges) that arise in the economy.
In this content, you will clearly understand what macroeconomics is, what it studies, and what its main indicators are.
So, keep reading to find out more!
What is macroeconomics?
If the economy were a large organism, macroeconomics would be the field responsible for observing its vital signs.
Instead of analyzing isolated decisions by a company or a consumer, it seeks to understand the functioning of the economy as a whole: the growth of production, price behavior, the level of employment, the interest rate, and the value of the currency against other currencies.
In other words, macroeconomics looks at the "big picture" and tries to answer questions that affect governments, businesses, families, and individuals all at once.
That is precisely the main point. difference between macroeconomics and microeconomics.
A microeconomics It studies specific markets and individual decisions, such as product pricing, consumer behavior, understanding production costs, and ultimately, a company's strategy.
Macroeconomics, on the other hand, investigates aggregate variables, that is, indicators that express the performance of the economic system on a large scale. When the public debate revolves around inflation, unemployment, recession, GDP growth, or interest rates, we are talking about the macroeconomic universe, and we are also talking about the current situation of an economic system, that is, its "day-to-day" operations!
What is studied in macroeconomics?
We've outlined the main topics of study when you begin a business administration or economics degree.
GDP – Gross Domestic Product
Among the central themes of macroeconomics, the first is... Gross Domestic Product (GDP), which measures the value of a country's production of final goods and services over a given period.
GDP is important because it helps us understand whether the economy is growing, stagnating, or contracting. In practical terms, when GDP grows consistently, there tends to be more income, investment, and job opportunities.
When it declines, the environment tends to become more challenging for companies and workers. In Brazil, IBGE (Brazilian Institute of Geography and Statistics) is the main official reference for monitoring this indicator.
In 2023, for example, Brazil's GDP grew by 2.91% of its GDP per quarter (TP3T), reaching R$10.9 trillion. The highlight was agriculture, with an increase of 15.11% of its GDP per quarter (TP3T), driven by record harvests of soybeans (+27.1% of its GDP per quarter) and corn (+19.0% of its GDP per quarter). This is a clear example of how production gains in one sector can boost the aggregate performance of the economy (IBGE, 2023).
Inflation
Another essential topic within the Faculty of Economics it is inflation, This refers to a persistent rise in the general price level. It doesn't just mean that a product has become more expensive, but that the purchasing power of the currency is changing.
This is why inflation directly affects family budgets, business planning, and government decisions. In Brazil, indices such as the IPCA – National Consumer Price Index, published by IBGE – are widely used to track this movement and guide economic analyses.
In 2024, the IPCA (Brazilian Consumer Price Index) closed the year at 4.83%, with greater pressure on food and beverages (7.69%), in addition to items very present in daily life, such as gasoline (+9.71%) and ground coffee (+39.60%). Macroeconomics matters precisely because it reflects these movements: when prices rise in a widespread manner, the purchasing power of families decreases and business planning becomes more difficult (IBGE, 2024).
It is important to emphasize that we have several indices that calculate and monitor price variations. For example: INPC (IBGE), IPCA-15 (IBGE), IGP-M (FGV), IGP-DI (FGV), among others.
Interest rate
A interest rate It also plays a central role. In the Brazilian case, the Selic rate is the main monetary policy instrument used by the Central Bank to influence other interest rates in the economy and help control inflation.
In simple terms, higher interest rates tend to discourage consumption and investment in the short term, but can contain inflationary pressures; lower interest rates, in turn, usually stimulate economic activity, although care must also be taken not to fuel price imbalances.
Unemployment rate
Unemployment, on the other hand, reveals the economy's capacity to generate jobs. According to the IBGE (Brazilian Institute of Geography and Statistics), unemployment rate This corresponds to the portion of the workforce that is unemployed but available and seeking employment.
This data is crucial because it goes beyond statistics: it helps us understand income, consumption, social vulnerability, and economic confidence. An economy may grow, but if that growth doesn't translate into jobs, its quality and sustainability are at risk.
In 2024, the annual unemployment rate fell to 6.6%, then the lowest in the historical series; in 2025, it fell even further, to 5.6%. This data helps to show that macroeconomics does not only deal with abstract numbers: it tracks the real capacity of an economy to generate jobs, income and better living conditions (IBGE).
What are the four markets in macroeconomics?
For didactic purposes, macroeconomics is usually organized around four major markets, which are constantly interconnected.
1. Market for goods and services
The first is the market for goods and services, where the level of production in the economy and aggregate demand are determined.
This is where issues such as household consumption, business investment, government spending, and exports emerge. When this market heats up, economic activity gains traction; when it cools down, the pace of growth tends to lose momentum.
2. Labor market
The second is the labor market, in which companies demand labor and workers offer their labor.
This market helps explain wages, employment levels, productivity, and informality. It is through this market that one can see, for example, whether an economic expansion is able to generate jobs and improve the population's income.
3. Money market
The third is the money market, related to the money supply, credit, and interest rates. This is where monetary policy takes center stage.
When the Central Bank changes the Selic rate., The effects spread throughout the economy through different channels, impacting consumption, investment, credit, expectations, and ultimately, inflation.
4. Foreign exchange market
The fourth, and no less important, is the foreign exchange market, where the exchange between national and foreign currencies takes place. The exchange rate influences the price of imported products, the competitiveness of exports, production costs, and even inflation.
For a company that relies on imported inputs, for example, the devaluation of the national currency can rapidly increase costs; for export sectors, the same movement can increase revenues in local currency.
Macroeconomic scenario and analysis in practice.
In practice, analyzing the macroeconomic scenario means interpreting how these indicators interact with each other. Strong GDP growth with high inflation may suggest overheating.
High interest rates coupled with weak economic activity may indicate an effort to control inflation in an environment of economic slowdown. A drop in unemployment coupled with rising incomes could boost consumption.
In other words, no indicator should be read in isolation: the analytical value lies in the relationship between them.
Public policies play a decisive role in this process. Monetary policy acts primarily through interest rates; fiscal policy involves public spending, taxation, and the government's accounts balance; and exchange rate and regulatory policies can also influence prices, capital flows, and competitiveness.
For companies, this means that investment, hiring, pricing, and expansion decisions depend, to a greater or lesser degree, on the macroeconomic environment.
A high interest rate environment can make credit more expensive; persistent inflation can reduce margins; volatile exchange rates can alter costs and business strategies.
Macroeconomics course
Macroeconomics is essential in Economics and Business Administration courses because it interacts with areas such as economic policy, finance, statistics, national accounts, and international economics.
In academic life, macroeconomics develops the ability to critically analyze indicators and public policies; in professional life, it improves decision-making in companies, governments, consulting firms, and financial institutions.
More than just studying numbers, learning macroeconomics is about understanding how public decisions, economic shocks, and global trends affect daily life.
Want to understand more about macroeconomics and excel in your field?
ESEG College, part of the Etapa Group, offers the Business Administration courses e Economic Sciences, In both programs, you will have direct contact with macroeconomics disciplines.
If you are interested in this area, visit our website and learn more about the courses.ESEG graduation courses.
