Calculate the Herfindahl-Hirschman Index in this industry

The percentage change in the demand for one good divided by the percentage change in the price of a related good is the

A) price elasticity of demand. B) price elasticity of supply. C) cross price elasticity of demand. D) income elasticity.

When comparing partial equilibrium effects to general equilibrium effects one can conclude that

A) general equilibrium effects are always larger. B) partial equilibrium effects are always larger. C) the effects are of equal size. D) one cannot determine before the fact which effect is greater.