Knobe, Joshua. (forthcoming) “Cognitive Processes Shaped by the Impulse to Blame.” Brooklyn Law Review.
To download the paper as a pdf, go to the SSRN page and click on one of the images at the bottom.
Note: This paper was actually written quite a while before it was submitted for publication, and many of the key ideas ended up appearing in other publications in the interim. Still, I thought that it might be helpful to put this paper up on the web because it remains the only published source for the experiment (reported in section II) about the conditions under which people regard omissions as causes.