Economics homework help? - Printable Version +- Twitist Forums (http://twitist.com) +-- Forum: General Social Media & Marketing Forums (/forum-8.html) +--- Forum: Social Marketing (/forum-10.html) +--- Thread: Economics homework help? (/thread-54884.html) |
Economics homework help? - braves29forlife - 01-16-2013 04:22 PM 1) Suppose the demand curve for widgets is P = 30 – 3Q and the supply curve is P = 10 + 2Q. a.) Find the equilibrium price and quantity in the free market. b.) Calculate aggregate social welfare (consumer surplus + producer surplus) in the free market. c.) Find the equilibrium price and quantity in a monopolized market. d.) Calculate aggregate social welfare (CS+PS) in the monopolized market. Any help would be awesome thanks. - Selecta - 01-16-2013 04:30 PM im a junior so idk - Anjaree - 01-16-2013 04:30 PM a. 30-3Q=10+2Q 5Q=20 Q=4, P=30-12=18 b. consumer surplus= 1/2(30-18)x4=24 producer surplus= 1/2(18-10) x 4=16 welfare=24+16=40 c.MC=MR 30-6Q=10+2Q 8Q=20,Q=2.5,P=30-7.5=22.5 d. cs=1/2(30-22.5)x2.5=9.375 ps=1/2(22.5-10)x2.5=15.625 welfare= 25 |