Consumer Surplus
Consumer surplus is the total benefit consumers receive when they purchase a good. It is calculated by adding up the individual surplus for every consumer who buys the product. An individual's surplus is the difference between their willingness to pay (WTP) and the actual price they paid for the good. The term 'consumer surplus' typically refers to this aggregate sum across all consumers.
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Introduction to Microeconomics Course
The Economy 2.0 Microeconomics @ CORE Econ
Ch.7 The firm and its customers - The Economy 2.0 Microeconomics @ CORE Econ
Ch.8 Supply and demand: Markets with many buyers and sellers - The Economy 2.0 Microeconomics @ CORE Econ
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Marginal Utility
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Producer Surplus
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Marshall's View on the Core Purpose of Economics
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Consumer Surplus
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Consider a market where 500 units of a good are being bought and sold. A new government policy is implemented that causes the market price to fall, but the total number of units exchanged in the market remains unchanged at 500. What is the most likely impact of this price decrease on consumer surplus, producer surplus, and total surplus?
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A technological innovation allows producers to lower their prices. If this change results in the exact same number of units being sold as before the innovation, the total surplus in the market will increase.
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A market is initially in a state where 100 units of a good are exchanged. For each independent scenario described below, match it with the correct resulting impact on consumer surplus, producer surplus, and total surplus.
Consider a market for a specific good. In Scenario X, a government intervention results in 50 units of the good being exchanged at a price of $15 per unit. In Scenario Y, a different government intervention in the same market results in 50 units of the good being exchanged at a price of $25 per unit. Assuming the underlying willingness to pay for buyers and willingness to accept for sellers for these 50 units are the same in both scenarios, how does the total economic gain (the sum of benefits to all buyers and sellers) in Scenario X compare to that in Scenario Y?
A single unit of a good is exchanged in a market. The buyer's willingness to pay for the unit is $80, and the seller's cost to produce it is $30. The transaction occurs at a price of $60. Which of the following expressions correctly represents the calculation of the total surplus generated from this transaction by summing its component parts?
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Learn After
Visualization of Consumer and Producer Surplus at a Non-Equilibrium Point (Figure E8.5)
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The primary advantage of modern, technology-based markets over traditional, physically-located markets is that they reduce the overall level of competition among sellers by allowing each seller to reach a unique, geographically dispersed customer base.
Consider a market for a specific product where the price is fixed at $50. Four individuals have the following maximum willingness to pay for the product: Alex ($90), Beth ($70), Carlos ($50), and Diana ($40). What is the total consumer surplus in this market?
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In a market for concert tickets, the price is set at $75 per ticket. Four potential buyers have the following maximum willingness to pay: Jada ($120), Kenji ($95), Liam ($75), and Maria ($60). Which of the following statements accurately analyzes the consumer surplus in this situation?
Public Project Feasibility Analysis
A new economics textbook is being sold at a fixed market price of $80. Match each potential student, based on their maximum willingness to pay (WTP), to their resulting individual consumer surplus or market action.
A technological breakthrough significantly reduces the production cost for a popular smartphone model, causing its market price to fall from $800 to $600. Assuming the demand for the smartphone remains unchanged, which statement best analyzes the impact on total consumer surplus?
A government introduces a per-unit subsidy for a specific good, which effectively lowers the price consumers pay from P1 to P2. Assuming the demand for the good remains constant, which statement best analyzes the impact of this policy on the total consumer surplus in the market?
Analyzing Price Changes and Consumer Surplus
Calculating Consumer Surplus from a Market Graph