In a world of managed fiat currencies it baffles me how anyone can think that currency manipulation is going to give one country an advantage over another. There is zero logic to this argument. A country has to live within its productive capacity. They either have to become more productive or cut spending. But Governments hate to cut spending, so rather than being limited to living off the revenue it gets from taxing the productive sector of the economy, they engage in ever increasing deficit spending and promising to pay for it all by taxing the rich more and more...the socialist ideal!
Two pizza shops on the same street operate within the same currency regime so they can’t manipulate currencies in order to compete with one another. They each have to find ways to outcompete by being more efficient and more productive. Somehow, Governments have duped the brain-dead masses into believing that things work differently in the international arena.