Inflation is a worldwide phenomenon where commodity prices are rising and money values are falling. There are two main types of inflation: demand-pull inflation, which occurs when aggregate demand outpaces supply, and cost-push inflation caused by increases in production costs. Inflation can also be categorized by its speed as creeping, walking, running, or galloping depending on the annual growth rate of prices. In conclusion, inflation reduces consumer purchasing power and equilibrium as consumers must cut back on consumption.