At the top of page 7 of the article by Kaiserman in the March 2017 issue of Legal Theory, two equations are reversed. The sentence containing these equations should read as follows:
Suppose for the sake of argument that P(c │ d ˄ b) = 0.9 and P(c │ r ˄ b) = 0.2; then it follows from Causal Contribution that f(D, [R, D]→C) b ≈ 0.82 and f(R, [R, D]→C) b ≈ 0.18.