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Currency wars: Where can traders go from here

Foreign exchange currencies.
Getty Images
Foreign exchange currencies.

After a week of collapsing asset prices, moves from central banks to weaken their country's currencies have proved frustratingly short-lived, leaving analysts scratching their heads as to what policymakers can do next to intervene.

Normally when a country loosens monetary policy and cuts their interest rates, investors pull their money out in search of higher yields elsewhere. This pushes down the value of the currency -- hopefully stimulating growth by helping exporters gain market share and making debt repayments cheaper.