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The paper, written by Richard Comotto of the ICMA Centre, questions the popular view of the role played by collateral haircuts in the recent crisis. Regulators are concerned that the application of haircuts could amplify negative market trends. They worry that, in a situation when asset prices are falling, increases in haircuts in response to a loss of confidence could reduce liquidity of market users who may then sell assets, so reducing the price and causing haircuts to be increased again. This theoretical scenario has been blamed by some for exacerbating the market crisis.
The paper refutes this view, citing evidence, much of it from official sources, that haircuts did not in fact change much during 2007-2009. Rather, market issuers initially responded to the crisis by reducing or withdrawing credit lines, shortening the terms for which they were willing to lend and narrowing the range of collateral they were willing to accept.
The author examines the data on which academic studies of this phenomenon have been based, and finds that these have been largely focused on the use of structured credit as collateral in the US market. This has been extrapolated to the wider global market without adequate consideration of the differences in market structure. The paper concludes that there is no empirical evidence to suggest that the imposition of haircuts in Europe was a major contributor to the market crisis.
Godfried De Vidts, chair of the ERC said: “Repo market participants want to work with the authorities to ensure the operation of the market in Europe is well understood, so that regulatory proposals assist its efficient functioning. Industry efforts have always and continue to be directed at improving market practice and education”.