Based on these, it discusses which trading mechanism should be chosen in our country's secondary board market with the conclusion that the market-maker rule should be the best choice.

在此基础上，探讨了我国二板市场应该采取何种交易机制，论证了做市商报价驱动机制是二板市场交易机制的首选。

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More generally, the rich world is not offering developing countries a model of how to implement a rule-based international trading system.

ECONOMIST: The WTO

Messrs Dimson, Marsh and Staunton then tested this finding in a different way, using a share-trading rule based explicitly on economic growth.

ECONOMIST: Buttonwood

While trading based on non-public business information has long been illegal for legislators, the insider trading rule does not apply to information gained through working in Congress.

BBC: US Senate backs Congress insider trading ban