This also an example of positive externalities.
这也是正外部性的一个例子。
Or is it always induced by externalities?
或者因为受到外在形式而产生变化？
Negative externalities are one of the main reasons for market failure.
负外部性是引起市场失灵的主要原因之一。
There's no way to attack the problem without taking a global look at externalities.
如果不以全球视角来看待这个外部成本，那么根本没有办法触及这个问题。
What is the economically efficient way of dealing with those negative externalities?
若何才能经济有用地应对这种负外部性呢？
What are the implications of network externalities for competition in your industry?
在你的产业中，网络外部性在竞争上有什么涵义？
Then it analyzes the network externalities of structure and its three principle rules.
然后，分析了信用卡运作体系的网络外延性等特征以及三项主要原则。
Agriculture is the foundation of our country economy and the weak industry which has externalities.
农业是我国国民经济的基础，同时又是一个具有外部性的弱质产业。
Agriculture is the foundation of our country economy and the weak industry which has externalities.
农业是我国国民经济的基础，同时又是一个具有外部性的弱质产业。
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