According to Professor Tarde, since it has been recognized that the social factors of criminality are the most important, there has been a manifest tendency to exaggerate the importance of economic factors. Their high importance, which is incontestable, does not at all justify our forgetting the stronger and more decisive action of the beliefs and feelings in the aberrations of the will. Which of the two sources of criminality is the more important, the economic or the religious (or intellectual)? That cannot be decided. But it is much more important to know in what phases, from what sides the economic life is criminogenous. Each economic phase, as, for example, domestic economy or urban economy, has its special form of criminality. But political and religious changes, whether they correspond or not to the transformations in the mode of production, have, perhaps, a much greater part in criminality than have the economic transformations. The domestic economy, for example, gives rise to different crimes in which no economic factor comes into play; as uxoricide, for example. Neither poverty alone nor wealth alone is an obstacle to honesty. Poor peoples or classes, accustomed to poverty, are often very honest, nor is there any more need that great differences of wealth should lead to crime. But it is the abrupt passing from wealth to poverty and from poverty to wealth that is dangerous to morality. “In short, criminality and morality are less dependent upon the economic state of a country, than upon its economic transformations. It is not capitalism as such that is demoralizing, it is the moral crisis that accompanies the passage from artisan production to capitalistic production, or from some particular mode of the latter to some other mode.