So-called “revolving doors” between government and the private sector raise the specter of potential corruption (if not in the strict legal sense, then in the broader sense), and some anticorruption advocates have called for much more aggressive restrictions on former government officials’ ability to work for the sectors they used to regulate. (See, for example, here, here, and here.) Though the concerns are legitimate, I argued in a post a little while back that the issue is much more complex: many of the concerns about the harms of the revolving door may be overblown, and revolving doors might in some cases have beneficial effects.

I thought I’d revisit the issue in light of two very interesting recent contributions on this topic: a blog post last week by Transparency International Programme Manager Dieter Zinnbauer on the pros and cons of the revolving door (along with a companion post on measurement issues), and an article by Wharton School Professor David Zaring. Mr. Zinnbauer concludes that the weight of the evidence suggests that the revolving door is indeed a serious problem, and that for the most part the costs outweigh the benefits; Professor Zaring reaches more or less the opposite conclusion.

Although I think the first half of Mr. Zinnbauer’s post is an excellent, succinct, evenhanded summary of the main issues, I respectfully disagree with the inferences that he draws from the existing evidence. That’s not to say that his conclusions are wrong, or that revolving doors are nothing to worry about. But when Mr. Zinnbauer says that “a much larger body of new evidence comes down quite distinctively on the negative impact of the revolving door,” I think he’s overstating his case. Here’s why: Continue reading →