Andersen, Thomas Barnebeck; Bentzen, Jeanet; Dalgaard, … - Økonomisk Institut, Københavns Universitet - 2009
Empirically, a higher frequency of lightning strikes is associated with slower growth in labor productivity across the 48 contiguous US states after 1990; before 1990 there is no correlation between growth and lightning. Other climate variables (e.g., temperature, rainfall and tornadoes) do not...