Theeconomic environment consists of the demand dynamics, supply situation, pricing factors, degree of competitiveness, and impact of profitability.

经济环境包括动态的需求，供应情况，价格因素，一定程度的竞争力，并影响盈利能力。

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"There's sort of concern in the industry that if you had only one or two players in the marketplace, that some of the pricing competitiveness wouldn't be there, " says Boston Stock Exchange Chairman Michael Curran.

FORBES: Why regional exchanges are heating up.