ABSTRACT
The relationship between temperature and tendency to violence isn't a simple straight line but is instead what we call curvilinear, broadly in the shape of an inverted U. A study of the number of aggravated assaults in Dallas, a southern city with plenty of hot days to provide data, showed that the number of assaults rises as the temperature rises to approximately 30°C. The good news for employers is that few weather variables appear to affect how hard their employees try to work. One study showed that the only variable that affected the performance of data input clerks was a "discomfort index" combining temperature and humidity – people quickly feel uncomfortable in hot, humid conditions. The nature of shopping is changing, with a shift to out-of-town shopping and then from physical to online shopping. The good news for employers is that few weather variables appear to affect how hard their employees try to work.
