Case Law, Systematic Law, and a Very Modest Suggestion

Statute Law Review 35(2), 159-180

U of Michigan Public Law Research Paper No. 361

23 Pages Posted: 18 Jul 2013 Last revised: 7 Aug 2014

See all articles by Andrew Stumpff Morrison

Andrew Stumpff Morrison

University of Michigan Law School; University of Alabama Law School

Date Written: July 18, 2013


This paper suggests that there are different ways of writing the same rule, some of which will be more accessible and comprehensible to the reader than others. Elaborate “systematic” statutory law – of the type that characterizes much modern legislation – is contrasted, as to its accessibility, with case law or common law systems, partly relying upon text “readability” studies of the last eighty years. Drawing on the author’s previous analogy between rules and “fractals” – shapes, like coastlines, whose borders are infinitely complicated – the article suggests that one way to balance the ultimately irreconcilable rule-writing goals of precision and reasonableness is to make more use of rule construction devices like the “safe harbor.” Under the safe-harbor (or “unsafe harbor”) approach, a vague default standard is combined with specification of the outcomes for those fact scenarios that are foreseeably most likely to arise, creating a sort of synthetic case law in advance, and potentially minimizing the number of “hard cases” that will arise.

Keywords: jurisprudence, fractal, vehicles in the park, open texture, safe harbor, unsafe harbor, common law, penumbra, vagueness, specificity, complexity, rule style, tax law, employee benefits, pensions, legislation, drafting, formalism, textualism, legal philosophy

Suggested Citation

Morrison, Andrew Stumpff, Case Law, Systematic Law, and a Very Modest Suggestion (July 18, 2013). Statute Law Review 35(2), 159-180, U of Michigan Public Law Research Paper No. 361, Available at SSRN: or

Andrew Stumpff Morrison (Contact Author)

University of Michigan Law School ( email )

625 South State Street
Ann Arbor, MI 48109-1215
United States

University of Alabama Law School

101 Paul W. Bryant Dr.
Box 870382
Tuscaloosa, AL 35487
United States

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