BlackRock Warns Against Regulating Market Indexes Post-Libor

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BlackRock Inc., the world’s largest asset manager, warned against over-regulation of market indexes in the wake of the London interbank offered rate-rigging scandal.

Most indexes are based on transaction data and would be burdened by extra costs if they are subject to regulation, BlackRock managing directors Richard Prager and Stephen Fisher said in a response to proposals from the International Organization of Securities Commissions to reform global benchmarks.