On the economics of the Swiss removing their peg from the Euro:
"In the future the Swiss surrender may be looked at as the first significant counter-attack against our current global system of monetary insanity. The mistake was not ending this peg, but in adopting it in the first place. The Swiss once again have a strong currency with expanded purchasing power. Yes, Swiss exporters may lose market share to international rivals. But the amount of Swiss francs they will actually earn from each unit sold will likely increase. So the Swiss may be able to export less and still earn the same money. In addition, the cost of imports will fall, allowing the Swiss to buy more with less.
Contrary to the common current belief, the goal of an economy is not to manufacture more products for others to buy, but to be able to buy more products yourself. In that respect, exports are merely the means to achieving that end. The less you need to export to pay for your imports the better. In other words, the goal of an economy is to consume, not to work. If we could consume without working we would happily do so. Working without consuming, not so much. In the past, the Swiss prospered with one of the world's strongest currencies. It will do so again."
On the economics of China removing their peg from the U.S. dollar: