Nearly six months after hearing oral arguments, the Supreme Court has yet to hand down a ruling in the closely watched Kentucky v. Davis case, leading some to wonder why the justices are taking so long to reach a decision.

Of the 29 cases heard by the high court during its fall 2007 session, only five remain undecided, including the Davis case, in which a Kentucky couple, George and Catherine Davis, challenged the state's practice of taxing out-of-state bonds but not its own bonds, claiming this violates the dormant commerce clause of the Constitution.

Subscribe Now

Independent and authoritative analysis and perspective for the bond buying industry.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.