An action for breach of any contract for sale must be commenced within four years after the cause of action has accrued. Price inelasticity offers firms greater flexibility with prices as the change in demand remains essentially the same whether prices increase or decrease.This book contains information on exporting that was current as of the date of publication. The significant features for the year with regard to industrial out put were 1 Substantial increase in the output of durable goods. The price elasticity gives the percentage change in quantity demanded when there is a one percent increase in price, holding everything else constant. Dlvhton of Aentrnts. We can usefully divide elasticities into three broad categories: elastic, inelastic, and unitary.