How did the rise in average annual income with the rise in prices from 1914 to 1920?

From 1914 to 1920, average annual income in many countries, particularly in the U.S., rose significantly due to wartime production and economic expansion. However, this increase in income was largely offset by soaring prices, as inflation surged during and after World War I. The purchasing power of consumers diminished, leading to a situation where despite higher nominal incomes, many people found it difficult to maintain their standard of living. This period highlighted the complex relationship between income growth and inflation, as real wages often failed to keep pace with rising costs.