Prof. Larry Ribstein has published a new article about state competition for corporate law and the related topic of the "internal affairs doctrine". Here is an excerpt:

The state competition for corporate law has long been studied as a distinct phenomenon. Under the traditional view, corporations are subject to a unique choice-of-law rule, the "internal affairs doctrine" (IAD). This rule is explained as a historical accident, or by the special logistics of the corporate contract. The resulting market for corporate law appears to have special characteristics, particularly including the dominance by the single state of Delaware.

 Here is the link to the full post and his article: Ideoblog: Hot off the Press: Corporations and the Market for Law

I have written about the Internal Affairs Doctrine on this blog, including a summary of  recent Delaware Supreme Court and Chancery Court decisions here.