It's the single most valuable commodity in the Final Empire!
This economy was not limited to a single commodity, though at first Baltic grain dominated it.
By the 1830s opium was the single most valuable commodity traded in the world.
An economy based on a single commodity is always vulnerable.
The trade of many commodity exporters is dominated by a single commodity.
As Pasinetti says: "where any question of evaluation has not yet arisen, corn being the single commodity produced".
Any simpleton knows that such dependence upon a single commodity leads to abuse.
Information is the single commodity, a common denominator upon which all industrial societies must rely.
As many as 43 developing countries depend on a single commodity for more than 20% of their total export revenues.
The farms that produce these single commodities average about 14,000 acres, roughly the size of Manhattan.