Groups of people make things.
They make food and tools. Making things better helps us all. It helps us live well. Can you think of something new you use?
People make things like food and tools.
When people make more things, it is called growth.
New machines can help people work faster. This makes things cost less money.
Better tools also help people make new things. For example, we have cars and phones now. This helps many people live better lives. Growth can change the world for everyone.
Economic growth means making more goods and services.
Goods are things like food. Services are things like repairs. Growth can happen in two ways. One way is using more things. This means having more workers or more land. This is called extensive growth. The other way is working better. This is called intensive growth.
It means using tools and power more wisely. This is called productivity.
New tools change how we live. In the past, people used hands and animals. Later, machines and steam power helped. This made making things much faster. For example, making steel became easier. This helped build railroads and ships.
New ideas also help. In the U.S., many things we buy today did not exist in 1869. High productivity can lower prices. This lets people buy more things. It can also mean shorter work weeks. In the 1920s, the work week in the U.S. was 49 hours. By 1933, it was cut to 40 hours. Growth helps people have better lives.
Economic growth is when a society makes more goods and services.
Goods are things you can touch, like food or tools. Services are things people do for you, like repairs. We can measure this growth using a number called Gross Domestic Product, or GDP. To see the true change, experts use "real" GDP. This means they adjust the numbers for inflation. Inflation is when prices for things go up over time. Using real GDP helps us see if we are truly producing more.
There are two main ways that growth happens. One way is called extensive growth. This happens when a country uses more inputs, like having more people or more land. The other way is called intensive growth. This is when people use what they have more efficiently. This is also known as productivity.
Productivity means getting more output from the same amount of labor or energy. For example, a farmer might grow more food using the same amount of land. Higher productivity can actually lower the cost of things. Over the 20th century, the real price of many goods fell by over 90%.
History shows us how much tools can change the world. Before the Industrial Revolution, people often faced a hard limit called the Malthusian trap. This meant that population growth often outpaced the food supply. The Industrial Revolution changed everything by using machines instead of just hands.
During the Second Industrial Revolution, people used steam and electricity instead of animals. New ways to make steel helped build railroads and ships. These inventions allowed for mass production. This helped people escape the old limits on how much they could produce.
Different places have seen growth in different ways. In the United States, productivity was a huge part of growth. A professor named Robert Solow estimated that technology caused 80 percent of long-term income rises. In the U.S., the work week changed too. It was 49 hours in the 1920s, but became 40 hours after 1933.
We can also see growth in Asia. In 1957, South Korea had a lower GDP per capita than Ghana. By 2008, South Korea's was 17 times higher than Ghana's. This shows how quickly a country can change.
Growth is also linked to how people learn and live. This is often called human capital. It refers to the skills and knowledge that people have. When people go to school or learn on the job, they build human capital. This helps them work more effectively. As countries grow, they often see a demographic transition. This means birth rates may decline and people live longer. More women also join the workforce as they have more access to jobs. All these pieces work together to shape the modern world.
Economic growth refers to an increase in the quantity and quality of goods and services produced by a society.
Economists measure this growth by looking at the increase in inflation-adjusted output over a specific period. This measurement is often called real Gross Domestic Product, or real GDP. Using "real" values is important because it removes the distorting effects of inflation. Inflation occurs when prices rise, which can make an economy look larger even if it is not producing more. To understand how much an average person benefits, experts calculate GDP per capita. This is the total GDP divided by the total number of people in the country.
There are two distinct ways that an economy can expand. The first is called extensive growth. This happens when a society increases the total amount of inputs available for use. Examples include an increase in the total population or the acquisition of new territory. The second type is called intensive growth. This occurs when a society uses its existing inputs more efficiently. This efficiency is known as productivity. Productivity involves getting more output from labor, physical capital, energy, or materials.
Experts use national income accounting to track these changes through various factors. These include labor productivity, the number of hours worked, and the participation rate of the working-age population.
Productivity has historically been the most significant driver of real per capita economic growth. In the United States, MIT Professor Robert Solow reached a famous conclusion about this relationship. He estimated that technological progress accounted for 80 percent of the long-term rise in U.S. per capita income. He found that increased investment in capital explained only the remaining 20 percent. High productivity is vital because it lowers the real cost of goods. In fact, during the 20th century, the real price of many goods fell by more than 90 percent.
This allows people to buy more with the same amount of work.
History shows that economic growth can fundamentally change how humans live. Before the Industrial Revolution, many societies faced the Malthusian trap. This was a condition where technological progress only increased the population, which was then limited by food supplies. The Industrial Revolution allowed growth to exceed population growth, providing an escape from this trap. During this era, mechanization began to replace hand methods in manufacturing. New processes streamlined the production of iron, steel, and chemicals. The development of machine tools also made it possible to create interchangeable parts.
This led to the era of mass production used today.
The Second Industrial Revolution brought even more significant changes to productivity. One major factor was the substitution of inanimate power for human and animal labor. Steam-powered electricity and internal combustion engines replaced limited wind and water power. Other major historical sources of productivity included automation and new transportation infrastructures like railroads and canals. Improvements in agriculture, such as the Green Revolution and the use of chemical fertilizers, also boosted output. These advancements allowed for a massive expansion of total power and energy efficiency. These changes helped move societies into a new era of production.
Economic growth also impacts the way people work and the structure of society. In the United States, the average work week was 49 hours in the 1920s. After the National Industrial Recovery Act of 1933, the work week was reduced to 40 hours. As countries industrialize, they often experience a demographic transition. This process involves declining birth rates and an increase in the average age of the population. During this transition, women often join the labor force in higher percentages. Additionally, children often spend more years in school rather than working. This builds human capital, which is the collective skills and knowledge of the workforce.
We can see the power of growth by comparing different regions and eras. In 1957, South Korea had a lower GDP per capita than Ghana. However, by 2008, South Korea's GDP per capita was 17 times higher than Ghana's.
While growth in the United States slowed after 1973, growth in many Asian countries has remained strong. In the U.S., productivity growth saw a spike between 1996 and 2004. This was due to Moore's law, which describes the rapid rate of technological innovation. Understanding these patterns helps economists study how different nations move through various stages of development.
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