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Discussion Paper
Insider Networks
Modern-day financial systems are highly complex, with billions of exchanges in information, assets, and funds between individuals and institutions. Though daunting to operationalize, regulating these transmissions may be desirable in some instances. For example, securities regulators aim to protect investors by tracking and punishing insider trading. Recent evidence shows that insiders have formed sophisticated networksthat enable them to pursue activities outside the purview of regulatory oversight. In understanding the cat-and-mouse game between regulators and insiders, a key consideration ...
Report
Leader-Follower Dynamics in Shareholder Activism
We propose a theory of coordination and influence among blockholders. Privately informed activists time their trades in sequence to lower acquisition costs, prompting a strategic use of order flows. Leader activists create trading gains for their followers, ultimately influencing their willingness to bear greater value-enhancing intervention costs. Through this channel, informed trades can exhibit predictability, in sharp contrast with Kyle (1985). We explain how this novel predictability shapes free-rider problems affecting governance, and how it produces price abnormalities analogous to ...
Report
Insider networks
How do insiders respond to regulatory oversight? History suggests that they form sophisticated networks to share information and circumvent regulation. We develop a theory of the formation and regulation of information transmission networks. We show that agents with sufficiently complex networks bypass any given regulatory environment. In response, regulators employ broad regulatory boundaries to combat gaming, giving rise to regulatory ambiguity. Tighter regulation induces agents to migrate transmission activity from existing social networks to a core-periphery insider network. A small group ...