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Can you explain the mechanism of money inflation?
The mechanism of supply and demand is imperfect.  Producers don't know exactly how many purchasers/consumers for a good there are.  Some goods, by their nature, are in short supply, and some are plentiful. The process of price discovery is one where (in a nominally free market) producers and purchasers make offers and counter-offers to assess what the price should be.  As they do this the historical price changes, usually floating around some long-term average.  As it goes up, we experience inflation.  As it goes down, deflation. However, there isn't a fixed supply of producers and purchasers, so as new ones arrive and old ones leave, this too has an impact on supply and prices. Money (either in electronic or physical form) needs to be available to reflect the transactions and underpin the economy. Most central banks (at least in more established economies) aim for inflation of 2-4% by controlling the availability of money and the cost of borrowing new money.  There are numerous ways they can do this (printing, issuing bonds, etc.). The reason one wants some degree of inflation is because employees will never accept a pay cut even when one would significantly improve the overall economy.  Companies often decrease their prices in order to match lower demand, but employees don't usually accept decreased wages for decreased labour demand. A nominal degree of overall money inflation therefore solves this problem.  Employees who get a below-inflation wage increase are actually getting a wage cut. Supply and demand must be matched and some inflation is the inevitable consequence of this.