“…Best (2009, 229–30) noted how the interpretation of the effects of presumption differ from state to state. The literature on the rebuttal of presumptions in civil law (see for instance Hecht and Pinzler 1978; Park, Leonard and Goldberg 1998, 102–5) distinguished between different theories of interpretation of this rule, namely the bursting bubble (see McCormick 1972, 871), the burden of persuasion shifting, and an intermediate theory (see Morgan 1933). In the first case, the presumption simply disappears when evidence of any kind is brought in; in the second case, presumptions alter the burden of persuasion and need to be rebutted by a standard of proof; in the third case, evidence needs to be real evidence, namely it should be considered by the jury or the judge as sufficient (see Mueller and Kirkpatrick 1999, 182–90).…”