Definition and Measurement (CPI)
The inflation rate measures the rate of increase in the general price level over a given period. The most common measurement is the year-over-year change in the Consumer Price Index (CPI), which tracks price movements of a representative basket of goods and services. Core CPI excludes volatile items like food and energy.
Nominal vs. Real Income
Nominal income is the face-value amount, while real income adjusts for inflation to reflect actual purchasing power. If your salary rises 3% but inflation is 5%, your real purchasing power has declined by about 2%. International and historical income comparisons must always use real values for accuracy.
Winners and Losers from Inflation
Inflation benefits borrowers and disadvantages lenders. Mortgage debt shrinks in real terms, while savings lose value. Workers whose wages lag behind price increases become effectively poorer.
Those holding assets in real estate or equities tend to be inflation- resistant, while those relying on cash or bonds are vulnerable. Inflation silently redistributes wealth across society.
Impact on Rankings
MyRank's income rankings use PPP conversion to adjust for price levels, but in countries experiencing rapid inflation, data freshness significantly affects results. In countries with annual inflation exceeding 50%, even six-month-old data may diverge substantially from current reality.