Assume all benefits (and costs) accrue to the buyers (and sellers) and the buyers and sellers interact in a market. Currently we have three buyers who value a good at $40. There are three possible sellers A, B, C whose marginal costs of production are $20, $30 and $50. Another seller, D, enters the market. D's marginal costs of production is $40. What is the change in surplus caused by D's entry?Do not include the $ sign and remember to include a negative sign if you want to say that surplus has decreased

Microeconomics A Contemporary Intro
10th Edition
ISBN:9781285635101
Author:MCEACHERN
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Chapter8: An Introduction To Perfect Competition
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Assume all benefits (and costs) accrue to the buyers (and sellers) and the buyers and sellers interact in a market. Currently we have three buyers who value a good at $40. There are three possible sellers A, B, C whose marginal costs of production are $20, $30 and $50. Another seller, D, enters the market. D's marginal costs of production is $40. What is the change in surplus caused by D's entry?Do not include the $ sign and remember to include a negative sign if you want to say that surplus has decreased

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