Answer: deflation
Explanation: Deflation in economics refers to a decline in the overall level of products and services prices. Deflation happens once the inflation rate drops under 0% (a detrimental inflation rate). Inflation lowers the value of a nation's currency throughout time, but it is exacerbated by inflation.
It makes possible the purchasing of more products and services with almost the similar amount of money as before. Deflation remains different from disinflation, a decrease in the inflation rates, i.e. while inflation is weaker but also positive. Deflation usually takes place when all the availability is heavy and when the demand is less.