“In the long run, the relative size of each currency portfolio depends primarily on relative trend growth rates and current account balances. Rapid economic growth is almost certain to be accompanied by an expanding share of the global market portfolio being denominated in the associated currency. Thus, investors will have to be induced to increase their strategic allocations to assets in that country/currency. All else the same, this would tend to weaken that currency—partially offsetting the increase in the currency’s share of the global portfolio—and upward pressure on risk premiums in that market. However, there are several mitigating factors”
Why does this weaken the currency? I would thought increased demand for Assets in a currency would strengthen that currency? What am I missing here?