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