What could a long-term weaker dollar mean for the world?

The fall of the US dollar has been a big market story in 2018, and despite a strong recovery in the second quarter of the year market commentators say this could be a long-term trend. A weak dollar helped  American companies sell goods abroad, boosting demand for commodities, and it helped to tame inflation in emerging markets. But given the dollar’s recent fightback, how confident can investors be about these outcomes?

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