Long Run Growth
Long run growth is the increase in the market value of the goods and services produced by an economy over time.
Learning Objective

Explain the impact of consistent longrun growth on an economy.
Key Points
 Growth is usually calculated in real terms, meaning that it is inflationadjusted to eliminate the distorting effect of inflation on the price of goods produced.
 Policymakers strive for continued and consistent growth.
 The large impact of a relatively small growth rate over a long period of time is due to the power of compounding.
 A small difference in economic growth rates between countries can result in very different standards of living for their populations if this small difference continues for many years.
Term

economic growth
The increase of the economic output of a country.
Full Text
Long run growth is the increase in the market value of the goods and services produced by an economy over time. It is conventionally measured as the percentage of increase in real gross domestic product, or real GDP. Growth is usually calculated in real terms: it is inflationadjusted to eliminate the distorting effect of inflation on the price of goods produced. In economics, economic growth or economic growth theory typically refers to growth of potential output, which is production at full employment.
Policymakers strive for steady, continued, and consistent growth because it is predictable and manageable for both policymakers and market participants. Over long periods of time even small rates of growth, like a 2% annual increase, have large effects. For example, the United Kingdom experienced a 1.97% average annual increase in its inflationadjusted GDP between 1830 and 2008. In 1830, the GDP was £41,373 million. It grew to £1,330,088 million by 2008 (in 2005 pounds). A growth rate that averaged 1.97% over 178 years resulted in a 32fold increase in GDP by 2008 .
Longrun growth rates
Growth in GDP can be significant, especially when annual growth rates are fairly consistent.
The Power of Compounding
The large impact of a relatively small growth rate over a long period of time is due to the power of compounding. A growth rate of 2.5% per annum leads to a doubling of the GDP within 29 years, while a growth rate of 8% per annum (an average exceeded by China between 2000 and 2010) leads to a doubling of GDP within 10 years. Therefore, a small difference in economic growth rates between countries can result in very different standards of living for their populations if this small difference continues for many years.
Note: an easy way to approximate the doubling time of a number with a constant growth rate is to use the Rule of 72. Divide 72 by the percentage annual growth rate to get a rough estimate of the number of years until the number doubles. For example, at a 10%, divide 72 by 10 to get a doubling time of 7.2 years. The actual doubling time is 7.27 years, so the rule of 72 is a good rough approximation.
Key Term Reference
 GDP
 Appears in these related concepts: Ethical Barriers, Gross Domestic Product, and The Common Market of the Southern Cone (MERCOSUR)
 full employment
 Appears in these related concepts: Defining Full Employment, Executing Restrictive Monetary Policy, and Marginal Analysis
 gross domestic product
 Appears in these related concepts: Industrialized Countries, Other Types of Bonds, and CatchUp: Possible, but not Certain
 inflation
 Appears in these related concepts: Price/Earnings Ratio, The Transition to Peacetime, and Economic Impacts of the Revolution
 output
 Appears in these related concepts: Functions and Their Notation, A Study of Process, and Defining the Production Function
 price
 Appears in these related concepts: BreakEven Analysis, Terms Used to Describe Price, and Defining a Market System
 real GDP
 Appears in these related concepts: Growth Economics, The GDP Deflator, and Introducing Aggregate Supply
Sources
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