The Eurozone is a bigger internal market than the US?
Eurozone richest market in the world?
Eurozone ranking first in inbound and outbound international investment?
Any sources to back up those assertions?
The Eurozone offers us a future where our second tier EU membership is at the whim of the Eurozone 1st tier members who have a majority and can out vote us putting their ever closer union agenda ahead of our national interest.
1. Trading as a world leader
The EU is the world's biggest exporter of manufactured goods and services, and it is the biggest import market for over 100 countries.
It is also the world's largest single market area. Both European and international consumers and investors enjoy the many benefits of a simplified system – in an area where people, goods, services and money can move freely.
http://europa.eu/pol/comm/index_en.htm
2. The EU is the largest economy in the world. Although growth is projected to be slow, the EU remains the largest economy in the world with a GDP per head of €25 000 for its 500 million consumers. http://ec.europa.eu/trade/policy/eu-position-in-world-trade/index_en.htm
The adjusted GDP of the 28 EU member nations is bigger than both China and the US, the traditional list of world's economic super powers.
"In nominal U.S. dollar terms, the European Union (plus Norway, Switzerland, Iceland) accounted for 25.4% of world output in 2014 according to data from the International Monetary Fund. That was greater than America’s share (22.5%) and well in excess of China’s—13.4%," said Quinlan.
http://uk.businessinsider.com/charts-eu-economy-is-bigger-than-the-us-2015-6?r=US&IR=T
3. Foreign direct investment
Despite the growing importance of emerging economies as hosts to foreign-owned firms, the EU remains the largest investor and recipient of FDI.
http://ec.europa.eu/economy_finance/international/globalisation/fdi/index_en.htm
The EU is the world's largest economy. It is a wounded giant but it is absolutely central to the economic prosperity of this country.