On a startup side, there is actually is a big difference between common law (e.g. Anglo) and civil law (e.g. Franco) systems - with common law being more advantageous to entrepreneurship because of the reduced risk of arbitrary laws - unlike precedence in common law systems.
PDF: http://moritzlaw.osu.edu/eblj/issues/volume1/number2/Smith.p...
I would agree that common law is more advantageous, because stare decisis ensures that the continuity of existing law is maintained, and that even new statute law must be interpreted in a way consistent with the existing system of law. Civil law, which relies entirely on statutes, allows legislatures much more leeway to make sweeping, arbitrary changes.