OK, but the distribution of company sizes is a only a good metric if you take a dictionary definition of "entrepreneurship". Yes, you can call a country which has a bunch of old-fashioned mom-and-pop book stores "entrepreneurial" in the sense that the risk/reward of the businesses are concentrated (high variance) because they are individually owned. But that's not the disruptive, innovative entrepreneurship that interests HNers. I think there's a broad range of HN-style entrepreneurship that shouldn't be characterized as shoot-for-the-moon but would not at all be measured by distribution of company size.