Their offspring will, by a parity of reasoning, tend to predominate over their contemporaries, and there being (suppose) no room for more than one species such as A, the weaker variety will eventually be destroyed by the new destructive influence which is thrown into the scale, and the stronger will take its place.

The best way for adjusting the gap between the internal and the external price and securing economic growth is to promote the non-manufacturing industry's productivity by aggressive investing in facilities.

The benchmark is used as a reference point for measurements.