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Races, Rushes, and Runs: Taming the Turbulence in Financial Trading Open Access

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Many participants, regulators, and observers of commodity and security markets have a sense that something in recent years has gone awry: that the explosive growth of high-frequency digital trading is somehow excessive, costly, unfair, and/or destabilizing. Several ideas for changing the rules have been discussed. Without a coherent explanation of exactly what is wrong, however, it can be very difficult to develop a promising remedy. The object of this paper is to offer one such explanation: that the digitization of the trading infrastructure, in combination with ubiquitous but fleeting information asymmetries, has stimulated a dramatic expansion of racing. By racing I mean the wasteful expenditure of resources in a contest to trade ahead of other market participants; that is, racing – like its cousin, queuing – is an example of a directly unproductive profit-seeking (DUP) activity whose costs erode the gains from trade that otherwise would be available to participants in the market. The paper also offers a specific remedy: the optional use of randomizing temporal buffers in the order flow.

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