Consider a firm with supply curve given by q(p) = p^1/2
If the firm faces a price decrease from $25 to $16, what fraction of the total reduction in producer surplus is attributed to "units leaving the market"?
Supply :
q = p1/2
When price = 25
q = 251/2 = 5
when price = $16
q = 161/2 = 4
Producer surplus before price reduction = ( 1/2)* 25*5 = $62.5
Producer surplus after price reduction = (1/2)*16*4 = $32
Total reduction = 62.5 - 32 = 30.5
reduction in producer surplus is attributed to units leaving the market = (1/2)*25*(5-4)
= $12.5
fraction of the total reduction in producer surplus is attributed to "units leaving the market"
= 12.5/30.5
= 25/61
= 0.4098
= 0.41
= 41%
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