The Journal of Finance publishes leading research across all the major fields of finance. It is one of the most widely cited journals in academic finance, and in all of economics. Each of the six issues per year reaches over 8,000 academics, finance professionals, libraries, and government and financial institutions around the world. The journal is the official publication of The American Finance Association, the premier academic organization devoted to the study and promotion of knowledge about financial economics.
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Informed Trading and Intertemporal Substitution
Published: 10/21/2019 | DOI: 10.1111/jofi.12857
YIZHOU XIAO
I examine the possibility of information‐based trading in a multiperiod consumption setting. I develop a necessary and sufficient condition for trade to occur. Intertemporal substitution introduces a desire to correlate current consumption with future aggregate shocks. When agents have heterogeneous time‐inseparable preferences, information differentially affects relative preferences for current and future consumption, making information‐based trading mutually acceptable. The no‐trade result continues to hold if there is no aggregate shock, or if agents have either homogeneous or time‐separable preferences.
Information Cascades and Threshold Implementation: Theory and an Application to Crowdfunding
Published: 11/05/2023 | DOI: 10.1111/jofi.13294
LIN WILLIAM CONG, YIZHOU XIAO
Economic interactions often involve sequential actions, observational learning, and contingent project implementation. We incorporate all‐or‐nothing thresholds in a canonical model of information cascades. Early supporters effectively delegate their decisions to a “gatekeeper,” resulting in unidirectional cascades without herding on rejections. Project proposers can consequently charge higher prices. Proposal feasibility, project selection, and information aggregation all improve, even when agents can wait. Equilibrium outcomes depend on crowd size, and project implementation and information aggregation achieve efficiency in the large‐crowd limit. Our key insights hold under thresholds in dollar amounts and alternative equilibrium selection, among other model extensions.