Prices of substitute and complement goods are held constant in the demand curve for a good. As well as Interest rates, savings, people's preferences, and people's knowledge about everything but one...
Ceteris paribus means all other factors remain the same, so if you want to see what happens when demand changes, you have to eliminate any other changes that may affect the results of your study.
Ceteris paribus is a Latin phrase that translates to mean "other things being equal". It is the assumption that other factors are kept constant while investigating a particular relationship. This...