America's Reserve Currency Advantage

There is much in the media about the reserve currency and related debates. This may be confusing to much of the public. I found that this short little quote from this article describes it quite succinctly.

Some say that America’s role as the principal issuer of the global reserve currency gives it an unfair advantage. America has a unique ability to borrow from foreigners in its own currency, and wins when the dollar depreciates, since its assets are mainly in foreign currency and its liabilities in dollars.