Columbia subject headings:
Developing countries--Mathematical models.
Investments, Foreign--Developing countries--Mathematical models.
Saving and investment--Developing countries--Mathematical models.
Harvard subject headings:
Developing countries--Mathematical models.
Investments, Foreign--Developing countries--Mathematical models.
Saving and investment--Developing countries--Mathematical models.
Princeton subject headings:
Developing countries--Economic conditions--Mathematical models.
Investments, Foreign--Developing countries--Mathematical models.
Saving and investment--Developing countries--Mathematical models.