ECN 001A Lecture Notes - Lecture 12: Salad Bar, Ecotax, Passive Smoking
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ECN 001A Full Course Notes
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Markets are usually a good way to organize economic activity. In absence of market failures, the competitive market outcome is efficient, and maximizes total surplus. Externalities = the uncompensated impact of one person"s actions on the well-being of a bystander (behavior we take as a society as a whole (as consumers/producers) that affect a third party) Can be negative or positive, depending on whether impact on bystander is adverse or beneficial. Self-interested buyers and sellers neglect the external costs or benefits of their actions. In presence of externalities, public policy can improve efficiency. Not thinking about the aftereffect from doing so-and-so. **society isn"t fully capturing the cost of producing the good. End up producing more than we should than the social optimal. Social cost: private cost (supply) + external cost. External cost: value of the negative impact on bystanders. **overproduction of good (too much of a good) per gallon (value of harm from smog, greenhouse gases)