I found the following few papers to be of interest:
- International Stock Market Efficiency and Integration: A Study of Eighteen Nations by Chan, Gup, and Pan
- Testing Efficiency of the Latvian Stock Market: An Evolutionary Perspective by Timur Mihailov
- An Empirical Test of German Stock Market Efficiency by Lindsay Gillette
- Testing Informational Market Efficiency on Kuala Lumpur Stock Exchange by Ozer Balkiz
- Testing for Market Efficiency in Emerging Markets: Evidence from the Athens Stock Exchange by George Filis
- Testing Stock Market Efficiency Using Neural Networks: Case of Lithuania by Marius Januskevicius
Also, I read this interesting article regarding the "Shanghai Premium", a disturbing fact that stocks listed on both the Chinese stock market and either the Hong Kong or US stock market (or all three) exhibit a heavy premium (in the neighborhood of 50-100%) for the Chinese stocks, even though the fundamental value of these stocks are the same. It's really more of a supply/demand issue since Chinese investors aren't yet allowed to participate in foreign stock exchanges or sell short Chinese stocks.