Yes, a few, but those cases aren't really useful for answering quantitative questions about general tax level changes and their effects on tax base, because the only time the effects are even remotely clear (and it's telling that your one example is an article whose lead paragraph says “There could be several reasons for this out-migration, but one possible reason that finds support is estate tax”) tend to be fairly extreme cases of fairly targeted taxes, where there is a clear visible link between the change in policy and the change in behavior.