Consider a monopolistically competitive market with NN firms. Each firm's business opportunities are described by the following equations: Demand: Q=100N−PQ=100N−P Marginal Revenue: MR=100N−2QMR=100N−2Q Total Cost: TC=50+Q2TC=50+Q2 Marginal Cost: MC=2QMC=2Q   As N rises, the demand for each firm's product: rise or fall?   How many units does each firm produce? a: 25 b: 400/N c: 25/N d: 25N

ENGR.ECONOMIC ANALYSIS
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Consider a monopolistically competitive market with NN firms. Each firm's business opportunities are described by the following equations:
Demand: Q=100N−PQ=100N−P
Marginal Revenue: MR=100N−2QMR=100N−2Q
Total Cost: TC=50+Q2TC=50+Q2
Marginal Cost: MC=2QMC=2Q
 
As N rises, the demand for each firm's product: rise or fall?
 
How many units does each firm produce?
a: 25
b: 400/N
c: 25/N
d: 25N
 
What price does each firm charge?
a: 75N
b: 125/N
c: 75/N
d: 100/N
 
How much profit does each firm make?
a: 1,250/N*2−50
b: 2,500/N*2−50
c: 50+625/N*2
d: 1,875/N*2
 
In the long run, how many firms will exist in this market?
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