Filtration enlargement‐based time series forecast in view of insider trading

Luke M. Bennett and Wei Hu

Journal of Economic Surveys, 2023, vol. 37, issue 1, 112-140

Abstract: This survey reviews filtration enlargement models in view of insider trading. Although filtration enlargement aptly models insiders' informational advantage, the theoretical results have not attracted the attention of the empiricists, owing mainly to the lack of a bridge transforming the results to testable hypotheses, and/or the absence of econometrics method linking the hypotheses and the data. This survey provides a feasible avenue to estimate insider information and to detect trading from a relatively sophisticated theoretical model, where the dynamics of publicly available data (e.g., stock price) implies insider information before the information is completely digested. We complete the survey with an empirical illustration based on simulated data.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:bla:jecsur:v:37:y:2023:i:1:p:112-140

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