Macroeconomics
Macroeconomics is a branch of economics that studies how an overall economy—the market systems that operate on a large scale—behaves. Macroeconomics studies economy-wide phenomena such as inflation, price levels, rate of economic growth, national income, gross domestic product (GDP), and changes in unemployment.
Some of the key questions addressed by macroeconomics include: What causes unemployment? What causes inflation? What creates or stimulates economic growth? Macroeconomics attempts to measure how well an economy is performing, to understand what forces drive it, and to project how performance can improve.
Macroeconomics deals with the performance, structure, and behavior of the entire economy, in contrast to microeconomics, which is more focused on the choices made by individual actors in the economy ((like people, households, industries, etc.).
There are two sides to the study of economics: macroeconomics and microeconomics. As the term implies, macroeconomics looks at the overall, big-picture scenario of the economy. Put simply, it focuses on the way the economy performs as a whole and then analyzes how different sectors of the economy relate to one another to understand how the aggregate functions. This includes looking at variables like unemployment, GDP, and inflation. Macroeconomists develop models explaining relationships between these factors. Such macroeconomic models, and the forecasts they produce, are used by government entities to aid in the construction and evaluation of economic, monetary and fiscal policy; by businesses to set strategy in domestic and global markets; and by investors to predict and plan for movements in various asset classes.
Given the enormous scale of government budgets and the impact of economic policy on consumers and businesses, macroeconomics clearly concerns itself with significant issues. Properly applied, economic theories can offer illuminating insights on how economies function and the long-term consequences of particular policies and decisions. Macroeconomic theory can also help individual businesses and investors make better decisions through a more thorough understanding of what motivates ot, andarties and how to best maximize utility and scarce resources.
The field of macroeconomics is organized into many different schools of thought, with differing views on how the markets and their participants operate.
Classical Classical economists hold that prices, wages, and rates are flexible and markets always clear, building on Adam Smith's original theories.
Keynesian Keynesian economics was largely founded on the basis of the works of John Maynard Keynes. Keynesians focus on aggregate demand as the principal factor in issues like unemployment and the business cycle. Keynesian economists believe that the business cycle can be managed by active government intervention through fiscal policy (spending more in recessions to stimulate demand) and monetary policy (stimulating demand with lower rates). Keynesian economists also believe that there are certain rigidities in the system, particularly sticky prices and prices, that prevent the proper clearing of supply and demand.
Monetarist
The Monetarist school is largely credited to the works of Milton Friedman. Monetarist economists believe that the role of government is to control inflation by controlling the money supply. Monetarists believe that markets are typically clear and that participants have rational expectations. Monetarists reject the Keynesian notion that governments can "manage" demand and that attempts to do so are destabilizing and likely to lead to inflation.
New Keynesian
The New Keynesian school attempts to add microeconomic foundations to traditional Keynesian economic theories. While New Keynesians do accept that households and firms operate on the basis of rational expectations, they still maintain that there are a variety of market failures, including sticky prices and wages. Because of this "stickiness", the government can improve macroeconomic conditions through fiscal and monetary policy.
Neoclassical Neoclassical economics assumes that people have rational expectations and strive to maximize their utility. This school presumes that people act independently on the basis of all the information they can attain. The idea of marginalism and maximizing marginal utility is attributed to the neoclassical school, as well as the notion that economic agents act on the basis of rational expectations. Since neoclassical economists believe the market is always in equilibrium, macroeconomics focuses on the growth of supply factors and the influence of money supply on price levels.
New Classical
The New Classical school is built largely on the Neoclassical school. The New Classical school emphasizes the importance of microeconomics and models based on that behavior. New Classical economists assume that all agents try to maximize their utility and have rational expectations. They also believe that the market clears at all times. New Classical economists believe that unemployment is largely voluntary and that discretionary fiscal policy is destabilizing, while inflation can be controlled with monetary policy.
Austrian
The Austrian School is an older school of economics that is seeing some resurgence in popularity. Austrian school economists believe that human behavior is too idiosyncratic to model accurately with mathematics and that minimal government intervention is best. The Austrian school has contributed useful theories and explanations on the business cycle, implications of capital intensity, and the importance of time and opportunity costs in determining consumption and value.
https://www.investopedia.com/terms/m/macroeconomics.asp
Some of the key questions addressed by macroeconomics include: What causes unemployment? What causes inflation? What creates or stimulates economic growth? Macroeconomics attempts to measure how well an economy is performing, to understand what forces drive it, and to project how performance can improve.
Macroeconomics deals with the performance, structure, and behavior of the entire economy, in contrast to microeconomics, which is more focused on the choices made by individual actors in the economy ((like people, households, industries, etc.).
There are two sides to the study of economics: macroeconomics and microeconomics. As the term implies, macroeconomics looks at the overall, big-picture scenario of the economy. Put simply, it focuses on the way the economy performs as a whole and then analyzes how different sectors of the economy relate to one another to understand how the aggregate functions. This includes looking at variables like unemployment, GDP, and inflation. Macroeconomists develop models explaining relationships between these factors. Such macroeconomic models, and the forecasts they produce, are used by government entities to aid in the construction and evaluation of economic, monetary and fiscal policy; by businesses to set strategy in domestic and global markets; and by investors to predict and plan for movements in various asset classes.
Given the enormous scale of government budgets and the impact of economic policy on consumers and businesses, macroeconomics clearly concerns itself with significant issues. Properly applied, economic theories can offer illuminating insights on how economies function and the long-term consequences of particular policies and decisions. Macroeconomic theory can also help individual businesses and investors make better decisions through a more thorough understanding of what motivates ot, andarties and how to best maximize utility and scarce resources.
The field of macroeconomics is organized into many different schools of thought, with differing views on how the markets and their participants operate.
Classical Classical economists hold that prices, wages, and rates are flexible and markets always clear, building on Adam Smith's original theories.
Keynesian Keynesian economics was largely founded on the basis of the works of John Maynard Keynes. Keynesians focus on aggregate demand as the principal factor in issues like unemployment and the business cycle. Keynesian economists believe that the business cycle can be managed by active government intervention through fiscal policy (spending more in recessions to stimulate demand) and monetary policy (stimulating demand with lower rates). Keynesian economists also believe that there are certain rigidities in the system, particularly sticky prices and prices, that prevent the proper clearing of supply and demand.
Monetarist
The Monetarist school is largely credited to the works of Milton Friedman. Monetarist economists believe that the role of government is to control inflation by controlling the money supply. Monetarists believe that markets are typically clear and that participants have rational expectations. Monetarists reject the Keynesian notion that governments can "manage" demand and that attempts to do so are destabilizing and likely to lead to inflation.
New Keynesian
The New Keynesian school attempts to add microeconomic foundations to traditional Keynesian economic theories. While New Keynesians do accept that households and firms operate on the basis of rational expectations, they still maintain that there are a variety of market failures, including sticky prices and wages. Because of this "stickiness", the government can improve macroeconomic conditions through fiscal and monetary policy.
Neoclassical Neoclassical economics assumes that people have rational expectations and strive to maximize their utility. This school presumes that people act independently on the basis of all the information they can attain. The idea of marginalism and maximizing marginal utility is attributed to the neoclassical school, as well as the notion that economic agents act on the basis of rational expectations. Since neoclassical economists believe the market is always in equilibrium, macroeconomics focuses on the growth of supply factors and the influence of money supply on price levels.
New Classical
The New Classical school is built largely on the Neoclassical school. The New Classical school emphasizes the importance of microeconomics and models based on that behavior. New Classical economists assume that all agents try to maximize their utility and have rational expectations. They also believe that the market clears at all times. New Classical economists believe that unemployment is largely voluntary and that discretionary fiscal policy is destabilizing, while inflation can be controlled with monetary policy.
Austrian
The Austrian School is an older school of economics that is seeing some resurgence in popularity. Austrian school economists believe that human behavior is too idiosyncratic to model accurately with mathematics and that minimal government intervention is best. The Austrian school has contributed useful theories and explanations on the business cycle, implications of capital intensity, and the importance of time and opportunity costs in determining consumption and value.
https://www.investopedia.com/terms/m/macroeconomics.asp