The analysis of positive externalities is similar to the analysis of negative ex-
ternalities. Figure 10-3 shows the market for robots. In this case,
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production is less than the private cost reflected in the supply curve. In particular,
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the social cost of producing a robot is the private cost less the value of the technol-
ogy spillover. Therefore,
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tity of robots than the private market does.
In this case,
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production of robots. If the government paid firms a subsidy for each robot pro-