Because of scale effect of services that stock exchanges offer, current charging standards of listing fees are rational.

由于证券交易所向上市公司提供的各种服务具有规模效应，因此当前的收费标准具有一定的合理性。

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Job listing fees were half of revenue in 2007 and are now down to 27%.

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Other NYSE sources of revenues include clearing fees, market data, listing fees and technology services.

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Nearly a third of its revenue comes from insertion and other listing fees.

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