3-1 .Quantitative Demand Analysis 3-2 . . The Elasticity Concept. Own Price Elasticity. Elasticity and Total Revenue. CrossPrice Elasticity. Income . Demand Functions. Linear . Log. Regression Analysis 3-3 The Elasticity Concept.• How responsive is variable “G” to a change . in variable “S”. % G. EG , S. % S. If EG,S > 0, then S and G are directly related If EG,S 0, then S and G are directly related If EG,S |