This book provides an economic account of why trusts exist and how trust law should be shaped. The trust is a key legal institution in the common law world but it has been neglected by the law and economics community until recently. Borrowing theories and doctrines from corporate law and economics, scholars have variously analyzed and described the trust as a tripartite contract, a nexus of contracts, and even a legal entity. These obligational approaches overlook the unique features of trusts for which corporate legal theories have no explanation. Most importantly, they fail to account for...