By Covestor China poses an interesting paradox for ETF investors. The world's second-biggest economy, which averaged 10% growth rates from 1980 to 2012, is decelerating. China grew 7 percent in the first quarter, the slowest pace since the 2009 global recession. At the same time, there are the explosive stock market rallies at the country's three major domestic stock exchanges. The Shanghai Composite Index is up nearly 80% over the last 6 months.