Question:

-suppose prices are announced simultaneously, what are the equilibrium prices Pa,Pb, and Ps?

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Consider the pricing problem between two independent firms, Firm A and Firm B that make complement products..?

Call these products A and B and denote their prices Pa+Pb respectively. Products A and B have zero marginal cost and are used to make an integrated system S. The demand for this system is given by equation Qs(Ps)=180-1/3Ps, where Ps=Pa+Pb....

-suppose prices are announced simultaneously, what are the equilibrium prices Pa,Pb, and Ps?

-Suppose Firm A announces its price first,what are the equilibrium prices Pa,Pb,and Ps?

-Suppose Firm A and B merge into one company..what is the equilibrium price,Ps?

-where are prices the lowest? why is this unusual?

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  1. I know Macroeconomics better.

    The only solution I see is for "-Suppose Firm A and B merge into one company..what is the equilibrium price,Ps?" question.

    If they are mergers then they act as single monopolist, and MC=0, so Profit(max) then MR->MC or MR->0

    MR=(TR)'

    TR=Q*P

    TR=180P-(P^2)/3

    MR=(180P-(P^2)/3)' = 180-2P/3

    180-2P/3=0

    180=2P/3

    P=180*3/2=90*3=270

    Answ: P=270

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