Abstract
Taking the occasion of discussing the moral and affection economy, this paper presents another type of analysis on the underdeveloped economy, which consists in explaining different economic stages by their different history-nature environment conditions. Generally most of economic theory including those of moral and affection explain the underdevelopment by non economic value to which the concerning society is too attached. They are essentially psychological or ethical theories. The way getting out of the underdevelopment is also psychological one: the men of underdeveloped societies must change their heart or brain to be economically rational. The history-nature environment analysis tries on the contrary to find its reason in the outer conditions. The underdevelopment is not unique; various types of underdevelopment exist. This variety results from that of the history-nature environment where underdeveloped societies are situated. This paper presents an example of this analysis by analyzing history-nature environment differences which exist between Southeast Asia and Africa and even in the interior of Africa. Africa can be at least classed into four types of regions (Table 1). This analysis explains why Southeast Asia could achieve more important economical development than Africa.
