The purpose of the System Dynamics method is to study the relationship between structure and behavior in non-linear, dynamic systems. In such systems, the significance of various structural components to the behavior pattern exhibited, changes as the behavior unfolds. Changes in structural...

In countries where tools of economic control are immature and disabled due to totalitarian systems, macroeconomic analyses for aggregate quantities and relationships, such as total consumption, investment, and government expenditures represents a difficult task. The practice of aggregation...

Most developing and underdeveloped countries beside Sudan suffer from the low levels of income in addition to the low savings that are result from the lack of sophisticated savings channels. Hence, the investment depends on the individual's abilities on self savings, where the investment is...

The present paper discusses issues of the tribal interactions living on the borders between North and South Sudan. Foresights are looked for, especially after secession. There are multiple ethnic relations and mutual resources collectively utilized. Different tribes live on those resources, in...