1) The dollar has declined in value by 40% against the euro over the past 6 years, driven by declining US interest rates and concerns about the large US debt and current account deficit. 2) The euro has increased in standing as an international reserve currency since its introduction, though the dollar remains the dominant reserve currency with over double the holdings of the euro. 3) Experts suggest that the euro could replace the dollar as the primary international reserve currency if the dollar's decline continues due to concerns about the US debt.