Substitutes for Insider Trading

Ian Ayres and Joseph Bankman

No n4sre_v1, LawArchive from Center for Open Science

Abstract: When insider trading prohibitions limit the ability of insiders (or of a corporation itself) to use material nonpublic information to trade a particular firm's stock, there may be incentive to use the information to trade instead in the stock of that firm's rivals, suppliers, customers, or the manufacturers of complementary products. We refer to this form of trading as trading in stock substitutes. Stock substitute trading by a firm is legal. In many circumstances, substitute trading by employees is also legal. Trading in stock substitutes may be quite profitable, and there is anecdotal evidence that employees often engage in such trading. Our analysis suggests that substitute trading is less socially desirable than traditional insider trading. We recommend a set of disclosure rules designed to clarify existing law and provide information on the extent of stock substitute trading. We also discuss possible changes in the law that might limit inefficient trading in stock substitutes.

Date: 2001-01-01
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Persistent link: https://EconPapers.repec.org/RePEc:osf:lawarc:n4sre_v1

DOI: 10.31219/osf.io/n4sre_v1

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