The OTAs love packaging as it helps them generate fees from airline tickets—as mentioned, if sold alone, an airline ticket provides zero commissions/fees for the OTAs.

在线旅行社喜欢打包产品，就像上面所说的那样，能帮助他们从机票中获得额外的收入。 因为如果只是单纯地售卖机票，在线旅行社是不可能获得佣金或其他费用的收入。

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Thus, a "zero property management fees" as a selling point for advocacy, property developers only a marketing tool, the essence of which remains huge.

因而，以“物业管理零收费”作为卖点进行宣传，只是房产开发商的一种促销手段，其实质仍是羊毛出在羊身上。

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So, after taking into account the market impact, and the commissions, and the fees, this zero-sum game becomes a negative-sum game.

所以，考虑到市场冲击，佣金，规费，这一零和博弈变成了负和博弈。

youdao

So,after taking into account the market impact, and the commissions,and the fees, this zero-sum game becomes a negative-sum game.

所以,考虑到市场冲击,佣金,规费,这一零和博弈变成了负和博弈

耶鲁公开课 - 金融市场课程节选

"Even with zero fees, 2012 would be a record year unless there's a catastrophic event, " CEO Ennio Doris told Reuters.

FORBES: Ennio Doris & family

But you might find it difficult to set up a new account until you have suitable personal identification in your new destination (such as a job or rental contract or social security number in the US), so make sure you have a decent credit card with zero foreign transaction fees to get you through the first few weeks.

BBC: How to budget for living abroad

When debit cards came along, banks promoted their use by slashing processing fees for transactions done on debit networks to zero.

FORBES: DOJ Suit Against Amex Pits Consumers Against Merchants