Answer:
inflation
Explanation:
The inflation rate refers to the rate at which the general price level of the goods and services sold in a country increase from one period to another. Generally inflation is measured in a quarter or yearly basis. A low inflation rate, like the one experienced during the 1990s is generally considered good and healthy for an economy.
When the inflation rate is extremely high, at least 50% per month, it is defined as hyperinflation.