Western economic powers variously agree to affect rates. Wednesday's German central bank action seems part of such an agreement. There are criticisms of today's non-system. For example, wide rate swings make cross-border trade and investment riskier than need be, so businesses pass up opportunities, curtailing world economic growth. There is no avoiding government.
Money is the province of governments.
Our government spends more than it taxes, and borrows the difference. To borrow enough it bids up dollar interest rates, so foreigners invest dollars here to earn interest. Foreigners investing dollars, instead of selling them, keeps the dollar's price higher than if it resulted only from relative international values of goods and services. Our central bank, the Federal Reserve, acts on interest rates, affecting the price of a dollar. These kinds of government actions, directed at the domestic economy, affect international money.