A substantial academic literature considers how agencies should interpret statutes. But few studies have considered how agencies actually do interpret statutes, and none has empirically compared the methodologies of agencies and courts in practice. This Article conducts such a comparison, using...

Income Tax and National Insurance are now sufficiently similar that merging them appears to be a plausible option, yet still sufficiently different that integration raises significant difficulties. This paper surveys the potential benefits of integration – increased transparency and reduced...