The article examines how consumer behavior in the Czech Republic is influenced by factors like income, prices, household size, and age. By analyzing data from 2000 to 2008, the researchers found that food, energy, and health products are essential goods, while clothing, transportation, and education are luxury items. Price changes have the most significant impact on energy and transportation expenses. The study's estimates can help understand how price shocks affect consumer demand and can be useful for analyzing the effects of price changes on different goods.