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Should retail investors' leverage be limited?

机译:散户的杠杆作用应该受到限制吗?

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Does the provision of leverage to retail traders improve market quality or facilitate socially inefficient speculation that enriches financial intermediaries? We evaluate the effects of 2010 regulations that cap leverage in the U.S. retail foreign exchange market. Using three unique data sets and a difference-in-differences approach, we document that the leverage-constraint reduces trading volume by 23%, alleviates high-leverage traders' losses by 40%, and reduces brokerages' operating capital by 25%. Yet, the policy does not affect the relative bid-ask prices charged by the brokerages. These results suggest the policy improves belief-neutral social welfare without reducing market liquidity. (C) 2018 Elsevier B.V. All rights reserved.
机译:向零售交易者提供杠杆作用会提高市场质量或促进社会效率低下的投机活动,从而丰富金融中介机构吗?我们评估了限制美国零售外汇市场杠杆作用的2010年法规的效果。使用三个独特的数据集和差异差异方法,我们证明了杠杆约束将交易量减少了23%,将高杠杆交易者的损失减少了40%,并将经纪人的运营资本减少了25%。但是,该政策不会影响经纪人收取的相对买入价。这些结果表明,该政策在不减少市场流动性的情况下改善了与信仰无关的社会福利。 (C)2018 Elsevier B.V.保留所有权利。

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