Monetary inflation is a sustained increase in the money supply of a country (or currency area). Depending on many factors, especially public expectations, the fundamental state and development of the economy, and the transmission mechanism, it is likely to result in price inflation, which is usually just called "inflation", which is a rise in the general level of prices of goods and services.Michael F. Bryan, On the Origin and Evolution of the Word "Inflation", clevelandfed.org
There is general agreement among economists that there is a causal relationship between monetary inflation and price inflation. But there is neither a common view about the exact theoretical mechanisms and relationships, nor about how to accurately measure it. This relationship is also constantly changing, within a larger complex economic system. So there is a great deal of debate on the issues involved, such as how to measure the monetary base and price inflation, how to measure the effect of public expectations, how to judge the effect of financial innovations on the transmission mechanisms, and how much factors like the velocity of money affect the relationship. Thus, there are different views on what could be the best targets and tools in monetary policy.
However, there is a general consensus on the importance and responsibility of central banks and monetary authorities in setting public expectations of price inflation and in trying to control it.
Keynesian economists believe the central bank can sufficiently assess the detailed economic variables and circumstances in real time to adjust monetary policy in order to stabilize gross domestic product. These economists favor monetary policies that attempt to even out the ups and downs of business cycles and economic shocks in a precise fashion.
Followers of the monetarist school think that Keynesian style monetary policies produce many overshooting, time-lag errors and other unwanted effects, usually making things even worse.
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In economics, hyperinflation is a very high and typically accelerating inflation. It quickly erodes the real value of the local currency, as the prices of all goods increase. This causes people to minimize their holdings in that currency as they usually switch to more stable foreign currencies. When measured in stable foreign currencies, prices typically remain stable. Unlike low inflation, where the process of rising prices is protracted and not generally noticeable except by studying past market prices, hyperinflation sees a rapid and continuing increase in nominal prices, the nominal cost of goods, and in the supply of currency.
In macroeconomics, inflation targeting is a monetary policy where a central bank follows an explicit target for the inflation rate for the medium-term and announces this inflation target to the public. The assumption is that the best that monetary policy can do to support long-term growth of the economy is to maintain price stability, and price stability is achieved by controlling inflation. The central bank uses interest rates as its main short-term monetary instrument.
The Nixon shock was a series of economic measures undertaken by United States President Richard Nixon in 1971, in response to increasing inflation, the most significant of which were wage and price freezes, surcharges on imports, and the unilateral cancellation of the direct international convertibility of the United States dollar to gold. Although Nixon's actions did not formally abolish the existing Bretton Woods system of international financial exchange, the suspension of one of its key components effectively rendered the Bretton Woods system inoperative.
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