Elasticities Prolm Dmn El iii: Given the demand function for organic processed pork QD=190 - 2UP + 20PM + 21' +152 where average PM = $4.00lkg, average Y=$12.5thousands1 and Z = 1, (a) What is the own price elasticity at the market equilibrium you have solved in Problem3 (2)? What is the economic meaning of the value of the own price elastic- ity? Suppose cluring one week, the grocery store sets a promotion price for pork that is slightly lower than the equilibrium price, will the revenue from pork increase or de- crease during the promotion week? (6 points}