MARGINAL ANALYSIS: A basic technique used in the economics that analyzes small, incremental changes in key variables. The economic obsession with marginal changes exists for at least two reasons. One reason is that many economic decisions made in the real world are made "at the margin." A second reason for using marginal analysis can best be termed analytical sophistication.

     See also | economics | economic analysis | comparative statics | market | model | ceteris paribus | marginal cost | marginal revenue |