Frontmatter -- Contents -- Preface -- PART I. BACKGROUND AND FUNDAMENTALS OF NETWORK ANALYSIS -- PART II. MODELS OF NETWORK FORMATION -- PART III. IMPLICATIONS OF NETWORK STRUCTURE -- PART IV. METHODS, TOOLS, AND EMPIRICAL ANALYSES -- Afterword -- Bibliography -- Index

We study learning and influence in a setting where agents communicate according to an arbitrary social network and naïvely update their beliefs by repeatedly taking weighted averages of their neighbors' opinions. A focus is on conditions under which beliefs of all agents in large societies...