What is the socially optimal quantity of output in this market, and what situation this figure is showing? 20 Social Cost Supply Demand 18 16 + 14 – 12 10 8 4 2 Demand 2 4 6 8 10 12 14 16 18 20 QUANTITY A. 12 units; This is a market with Negative Externalities in Production, such as Pollution. B. More than 10 units; This is a market with Positive Externalities in Production, such as Hi-tech firms clustering in Silicon Valley. C. Between 8 and 10 units; This is a market with Negative Externalities in Consumption, such as Smoking. D. 8 units; This is a market with Positive Externalities in Consumption, such as Education. a PRICE
The Correct Answer and Explanation is :
The correct answer is A. 12 units; This is a market with Negative Externalities in Production, such as Pollution.
n the provided graph, we observe three curves: Demand, Supply, and Social Cost.he Demand curve represents the Marginal Private Benefit (MPB), reflecting the benefit consumers receive from each additional unit consumed.he Supply curve indicates the Marginal Private Cost (MPC), representing the cost producers incur for each additional unit produced.he Social Cost curve illustrates the Marginal Social Cost (MSC), which includes both the private costs borne by producers and the external costs imposed on society, such as pollution.
n markets with negative externalities in production, like pollution, the MSC exceeds the MPC because the production process imposes additional costs on third parties not involved in the transaction.his discrepancy leads to overproduction in an unregulated market, as producers do not account for these external costs.he socially optimal quantity of output is achieved where the Marginal Social Cost equals the Marginal Social Benefit (MSB).n this context, assuming no external benefits, the MSB is equivalent to the MPB, represented by the Demand curve.
y analyzing the graph, we identify that the intersection of the Demand curve (MPB) and the Social Cost curve (MSC) occurs at a quantity of 12 units.his point signifies the socially optimal output level, where the total welfare is maximized, and the negative externalities are appropriately internalized.t this quantity, the price reflects the true cost of production, including externalities, leading to a more efficient allocation of resources.
n contrast, if only the private costs and benefits are considered, the market equilibrium would occur at the intersection of the Supply (MPC) and Demand (MPB) curves, resulting in a higher quantity of output.his overproduction leads to a deadweight loss, as the additional units produced beyond the socially optimal level generate more social costs than benefits.
o correct this market failure, government interventions such as imposing a per-unit tax equal to the marginal external cost can be implemented.his tax would shift the Supply curve upward, aligning the MPC with the MSC, thereby reducing the quantity produced to the socially optimal level of 12 units.uch interventions help internalize the external costs, ensuring that producers account for the societal impact of their production decisions.
n summary, the graph illustrates a market with negative externalities in production, where the socially optimal quantity is 12 units.t this output level, the marginal social cost equals the marginal social benefit, leading to an efficient allocation of resources that accounts for the external costs imposed on society.