Is there an Asian RMB bloc?

"...The first interesting commentary is a paper by Arvind Subramanian and Martin Kessler, both from the Peterson Institute, arguing that a RMB currency bloc is rising in Asia and is displacing the US dollar. According to the abstract:

A country’s rise to economic dominance tends to be accompanied by its currency becoming a reference point, with other currencies tracking it implicitly or explicitly. For a sample comprising emerging market economies, we show that in the last two years, the renminbi has increasingly become a reference currency which we define as one which exhibits a high degree of co-movement (CMC) with other currencies.
In East Asia, there is already a renminbi bloc, because the renminbi has become the dominant reference currency, eclipsing the dollar, which is a historic development. In this region, 7 currencies out of 10 co-move more closely with the renminbi than with the dollar, with the average value of the CMC relative to the renminbi being 40 percent greater than that for the dollar.
We find that co-movements with a reference currency, especially for the renminbi, are associated with trade integration. We draw some lessons for the prospects for the renminbi bloc to move beyond Asia based on a comparison of the renminbi’s situation today and that of the Japanese yen in the early 1990s. If trade were the sole driver, a more global renminbi bloc could emerge by the mid-2030s but complementary reforms of the financial and external sector could considerably expedite the process.

The RMB, the authors claim, is well on its way to eclipsing the US dollar as the dominant reserve currency. In an OpEd piece in the Financial Times the authors explain their reasoning a little more, going on to say:

In new research, we find that since the global financial crisis, as the US and Europe have struggled economically, the renminbi has increasingly become a reference currency (meaning emerging market exchange rates move closely with it). In fact, since June 2010 when the renminbi resumed floating, the number of currencies tracking it has increased compared with the earlier period of flexibility between July 2005 and 2008. Over the same period, the number tracking the euro and the dollar declined.
East Asia is now a renminbi bloc because the currencies of seven out of 10 countries in the region – including South Korea, Indonesia, Taiwan, Malaysia, Singapore and Thailand – track the renminbi more closely than the US dollar. For example, since the middle of 2010, the Korean won and the renminbi have appreciated by similar amounts against the dollar. Only three economies in the group – Hong Kong, Vietnam and Mongolia – still have currencies following the dollar more closely than the renminbi."
 

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