貌似很流弊啊，看来那么多似懂非懂的。

不是很同意你的观点

是好久没来了，怎么还不让回复了？很多东西和以前不一样了，那个3楼的，一直在这？还喜欢打嘴架呢？最近有对手吗？

The euro is the currency used by the Institutions of the European Union and is the official currency of the eurozone, which consists of 18 of the 28 member states of the European Union: Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia, and Spain.

The most obvious benefit of adopting a single currency is to remove the cost of exchanging currency, theoretically allowing businesses and individuals to consummate previously unprofitable trades.

For consumers, banks in the eurozone must charge the same for intra-member cross-border transactions as purely domestic transactions for electronic payments (e.g., credit cards, debit cards and cash machine withdrawals).

The absence of distinct currencies also removes exchange rate risks. The risk of unanticipated exchange rate movement has always added an additional risk or uncertainty for companies or individuals that invest or trade outside their own currency zones. Companies that hedge against this risk will no longer need to shoulder this additional cost.

Financial markets on the continent are expected to be far more liquid and flexible than they were in the past. The reduction in cross-border transaction costs will allow larger banking firms to provide a wider array of banking services that can compete across and beyond the eurozone. However, although transaction costs were reduced, some studies have shown that risk aversion has increased during the last 40 years in the Eurozone. :)

欧元是欧盟的机构使用的货币是欧元区的官方货币，由18个欧洲联盟的28个成员国：奥地利，比利时，塞浦路斯，爱沙尼亚，芬兰，法国，德国，希腊，爱尔兰，意大利，拉脱维亚，卢森堡，马耳他，荷兰，葡萄牙，斯洛伐克，斯洛文尼亚，和西班牙。
采用单一货币的最明显的好处就是消除交换的货币成本，理论上允许企业和个人完善以前无利可图的行业。
对于消费者来说，在欧元区银行要收取相同的内构件的跨境交易作为纯粹的国内交易的电子支付（例如，信用卡，借记卡和取款机取款）。
不同的货币没有还消除汇率风险。未预期汇率变动风险一直添加了额外的风险或不确定性的公司或个人投资或自己外的货币区内贸易。公司规避这一风险将不再需要承担这项额外的成本。
金融市场对大陆预计将远比过去更多的液体和灵活的。在跨境交易费用的降低会让大银行提供银行服务的更广泛的阵列，能竞争过超出欧元区。然而，尽管交易成本降低，一些研究表明，风险厌恶情绪在欧元区在过去的40年中上升

以上是七楼的回复，现在的自动翻译真是太强大了

采用单一货币的最明显的好处就是消除交换的货币成本，理论上允许企业和个人完善以前无利可图的行业。

这句话，暴露了欧元区发达国家的狼子野心，比如说德国和西班牙，以前都有自己的货币，有自己的汇率，合并后相当于自己的汇率做了一次调整，西班牙的汇率提高的，表面上收入增加，德国汇率贬值，表面上收入减少，但是德国的商品更好销了，收入损失的部分，还可以利用欧元区的货币机制获得补偿