It was hypothesized that the Euro adoption would result in 1) trade creation, 2) trade diversion, as well as, 3) an increased focus by individual EMU Nations on the production of goods and services,which exemplify that Nations areas of greatest strength. Noteworthy, were the statistically significant increases in average monthly trade for virtually every trade category (e.g., SITC)and type of trade flow (in other words, imports, exports, or total trade). The success of the Euro adoption was measured by its impact on trade flows between the EMU and some of its important trading partners (e.g., Canada, China, Iceland, Japan, Mexico, Norway, Switzerland and the USA). In addition, there was evidence of trade creation within the EMU; and, trade diversion between the EMU and its trading partners... This study examines the impact of the EMUs adoption of the Euro on trade creation, trade diversion and national comparative advantage. The results were mixed--and, both winners and losers emerged.