What is "semi-elasticity"

alt. (context economics English) The percentage change in a function relative to an absolute change in its parameter. Algebraically, the semi-elasticity of a function ''f'' at point ''x'' is ''f'(x)/f(x)''. n. (context economics English) The percentage change in a function relative to an absolute change in its parameter. Algebraically, the semi-elasticity of a function ''f'' at point ''x'' is ''f'(x)/f(x)''.