I don't normally list these, but this is for a special issue of the International Journal of Entrepreneurial Venturing on "Research on Global Entrepreneurship Monitor Data." The GEM data is an important look at entrepreneurship across countries and Zoltan has played an important role in its development, writing or coathoring several important papers since its inception. Due note that the deadline is Sept 15.
You can find the CFP here, and more about GEM data through the consortium website. I assume that if you are working in this area you already know that the consortium does not like to make the latest data available online, but it's available elsewhere.