| 1. | Without network externality this form of communication would have been impossible.
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| 2. | Externalities can sometimes be resolved by agreement between the parties involved.
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| 3. | The externality operates through prices rather than through real resource effects.
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| 4. | Both pecuniary and real externalities can be either positive or negative.
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| 5. | In different models, positive or negative externalities lead to inefficiency.
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| 6. | The urban environment creates positive externalities that benefit several different industries.
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| 7. | Would a blackboard chart of positive externalities involve weight loss?
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| 8. | And the style consultants can't even agree about the externalities.
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| 9. | Malaysian consumers are intelligent but are easily influenced by externalities.
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| 10. | Much environmental economics concerns externalities or " public bads ".
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