Extending climato-economic theory: when, how, and why it explains differences in nations' creativity. 
The climato-economic theory postulates mechanisms of threat and challenge to explain differences between countries.  Interestingly, both of these mechanisms are often considered to be components of the models of organizational climate for creativity.  We show that among rich countries, climatic demands are related to creative achievement in a reversed-U manner, whereas the relationship is linear among poor countries.