Considers a model where mortality is a decreasing function of the economic growth rate – that is, new inventions inherently possess some danger (i.e., radium can turn out to be poisonous, nuclear physics can lead to the potential for nuclear war, etc.). Solves a straightforward model where for some realistic parameters, people at a high enough level of income choose to reduce the growth rate by ignoring inventions that are potentially dangerous – i.e., safety is a luxury good.