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When an economy is mainly dependent on oil exports, like Venezuela, or one that relies mostly on mining like many countries in Africa or even one that has branded itself as a trade port like Hong Kong; international trade is always emphasized despite the complications of international agreements, or the risk of the fluctuations in currencies.

 In any case, all the countries need to reach the best   balance between what is the best for international trade, and what is the best for the wealth of its population. 

in Europe this isn’t possible, because Germany decides the strengthen of Euro, harming the rest of countries like France,  that is negotiating with EU members a possible devaluation of the Euro to make its exports cheaper, what it would be necessary for Greece, Spain or Italy,  not for UK that has its own currency.

China, besides its cheaper production that promotes exports, keep its Yuan the lower as possible. In fact, China holds of US dollars in the US itself to reduce its circulation and exert an upward pressure in the Dollar valuation.

Brazil now, and also Philippines, Indonesia, and Vietnam since several years, continue depreciating their currencies.

In Sylodium （国际贸易，目录） you can advertise for free your company or your project, at the intersection of cities and countries like  雅加达（印度尼西亚） - 布鲁塞尔（比利时）。香港（中国） - 纽约（美国）。伦敦（英国） - 雅典（希腊）。柏林（德国） - 巴西利亚（巴西）。加拉加斯（委内瑞拉） - 马德里（西班牙）。巴黎（法国） - 罗马（意大利）....