Mark Thoma at Economist's View says:
The Wall Street Journal says Kevin Hassett has discovered the Laffer curve, but I think these data might say something else. Here's the picture from the editorial where they are making their usual plea for more tax cuts:
The blue line is supposed to be the Laffer curve, but this is far from compelling. Since it looks like all that's been done here is to draw a line through an outlier, Norway (an outlier that in other contexts we are told to ignore because it is an outlier, e.g. see below), and since this is clearly not the best fitting line to these data, here's another possibility:
More discussion at PZ Myers at Pharyngula, Sean at Cosmic Variance, and Brad DeLong.
