In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time.[1] When the price level rises, each unit of currency buys fewer goods and services; consequently, inflation is also an erosion in the purchasing power of money – a loss of real value in the internal medium of exchange and unit of account in the economy.[2][3] A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index (normally the Consumer Price Index) over time.[4]

Inflation's effects on an economy are manifold and can be simultaneously positive and negative. Negative effects of inflation include a decrease in the real value of money and other monetary items over time; uncertainty about future inflation may discourage investment and saving, or may lead to reductions in investment of productive capital and increase savings in non-producing assets. e.g. selling stocks and buying gold. This can reduce overall economic productivity rates, as the capital required to retool companies becomes more elusive or expensive. High inflation may lead to shortages of goods if consumers begin hoarding out of concern that prices will increase in the future. Positive effects include a mitigation of economic recessions,[5] and debt relief by reducing the real level of debt.

High rates of inflation and hyperinflation can be caused by an excessive growth of the money supply. Views on which factors determine low to moderate rates of inflation are more varied. Low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities, as well as to growth in the money supply. However, the consensus view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth.

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The most common and most well-known measure of inflation is the change in the consumer price index - the CPI. This measure is calculated and published every month by Statistics Sweden (SCB). Each month, SCB “buys” a basket of goods and services. By purchasing the same goods and services, it becomes possible to study the size of the changes in the price of the basket. Since the quality of the goods can change over time, such as when a computer’s performance improves over time, SCB attempts to estimate the value of these improvements and exclude them from the price increases.

The prices included in the basket and the significance of the different price changes depend on how much of the various goods and services households buy. A product or service that is consumed on a large scale is given a greater weight than one that is consumed on a lesser scale. This means that price changes on a product or service that is consumed on a large scale have a greater impact on the CPI than price changes on a product or service consumed on a lesser scale.
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Hi

In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time.[1] When the price level rises, each unit of currency buys fewer goods and services; consequently, inflation is also an erosion in the purchasing power of money – a loss of real value in the internal medium of exchange and unit of account in the economy.[2][3] A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index (normally the Consumer Price Index) over time.[4]

Inflation's effects on an economy are manifold and can be simultaneously positive and negative. Negative effects of inflation include a decrease in the real value of money and other monetary items over time, uncertainty over future inflation may discourage investment and savings, and high inflation may lead to shortages of goods if consumers begin hoarding out of concern that prices will increase in the future. Positive effects include a mitigation of economic recessions,[5] and debt relief by reducing the real level of debt.

Economists generally agree that high rates of inflation and hyperinflation are caused by an excessive growth of the money supply.[6] Views on which factors determine low to moderate rates of inflation are more varied. Low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities, as well as to growth in the money supply. However, the consensus view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth.

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Hi

Measuring inflation is a difficult problem for government statisticians. To do this, a number of goods that are representative of the economy are put together into what is referred to as a "market basket." The cost of this basket is then compared over time. This results in a price index, which is the cost of the market basket today as a percentage of the cost of that identical basket in the starting year.

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