The other-things-equal assumption, ceteris paribus refers to the notion that all variables except those under immediate consideration are held constant for a particular analysis.
Explanation:
"Holding other things constant" refers to the term Ceteris paribus. It mainly considers the one statement "all thing being equal" . In economic field, it takes only one variable into account and determines the effect of that one variable in economics holding all the other variables as a constant.
Whenever an argument occurs related to cause and effect then this concept comes into play. For instance this concept says that increasing the wage of an employee can reduce marginal cost, increase money supply, improves profits of the company he is working,etc. Thus, it considers the effect of only the wage of an employee.