一个共同的收费模式阻止了成员银行对规则的滥用——规则规定零售商必须接受所有印有联合标志的信用卡。
A common fee structure stops members from abusing the rule that retailers must take all CARDS issued with the association's brand.
这份调查也包括了对那些希望联合尝试（新闻在线）收费的发行人而言令人震惊的信息。
The survey also contained devastating news for those publishers hoping to co-ordinate attempts to charge.
许多在公司上班的开发者同时兼顾开源软件和收费软件，并用许多商业模式将两者联合起来，而且调查发现大约40%的公司都采取这种方式。
Many work for firms that develop both open-source and proprietary programs and combine them in all kinds of business models. Nearly 40% of companies surveyed fall into this category.
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