Front Cover; Handbook of Media Economics; Copyright; Introduction to the Series; Contents; Introduction; Contributors; Acknowledgment; Dedication; Chapter 11: Privacy and the Internet; 11.1. Introduction; 11.2. Economics of Privacy; 11.3. Privacy and Advertising; 11.3.1. Privacy Concerns and Targeted Advertising; 11.3.2. Privacy Concerns and Behavioral Pricing; 11.3.3. Privacy Regulation and Targeted Advertising; 11.3.4. Privacy and Market Structure; 11.3.5. New Directions in Research on Privacy and the Advertising-Supported Internet; 11.4. Privacy and Social Media 11.5. Privacy in a World of Infinitely Persisting Data: The Right to be Forgotten11.6. Privacy: Online Data Security; 11.7. Privacy and the Government; 11.8. Conclusion: Future Spheres of Privacy; Acknowledgments; References; Chapter 12: User-Generated Content and Social Media; 12.1. Introduction; 12.2. The Impact of User-Generated Content; 12.2.1. Data and Identification Challenges; 12.2.1.1. Cross-Platform Comparisons; 12.2.1.2. Platform Quirks; 12.2.1.3. Field Experiments; 12.2.2. Impact of UGC on Demand: Data, Methods, and Results; 12.2.3. Social Effects of Social Media 12.2.4. Other Findings and Open Questions12.3. The Quality of User-Generated Content; 12.3.1. Promotional Content; 12.3.2. Self-Selection; 12.3.3. Peer Effects and Social Influence; 12.3.4. Other Issues; 12.4. Incentive Design and Behavioral Foundations; 12.5. Other Issues; 12.5.1. Business Models; 12.5.2. Competition and Network Effects; 12.5.3. Digital Exhaust, Property Rights, and Privacy; 12.5.4. Information Aggregation; 12.5.5. Welfare Effects; 12.6. Discussion; Acknowledgments; References; Part III: The Political Economy of Mass Media Chapter 13: Media Coverage and Political Accountability: Theory and Evidence13.1. Introduction; 13.2. Theory; 13.2.1. The Role of Information in Politics; 13.2.2. Market Provision of News; 13.2.2.1. Total Coverage of Politics; 13.2.2.1.1. Monopoly Media; 13.2.2.1.2. Competition; 13.2.2.2. Coverage Across Issues and Multitasking; 13.2.3. Optimal Regulation and Public Provision of News; 13.3. Evidence; 13.3.1. Volume of Coverage; 13.3.2. Voters; 13.3.2.1. Information; 13.3.2.2. Responsiveness; 13.3.2.3. Political Participation; 13.3.3. Politicians; 13.3.4. Policy; 13.3.4.1. Who Gets the News? 13.3.4.2. Volume and Focus of Political Coverage13.3.4.2.1. What Issues Are Covered?; 13.3.5. Multitasking; 13.3.5.1. Audience Share Bias; 13.3.5.2. Media Access Bias; 13.3.5.3. Newsworthiness Bias; 13.3.5.4. Target Group Bias; 13.4. Conclusion; References; Chapter 14: Media Bias in the Marketplace: Theory; 14.1. Introduction; 14.2. What is Bias?; 14.3. Bias and Welfare; 14.4. A Model of the Market for News; 14.5. Supply-Driven Bias; 14.6. Demand-Driven Bias; 14.6.1. Delegation; 14.6.2. Psychological Utility; 14.6.3. Reputation; 14.7. Conclusion; Acknowledgments; References.