By the late 1800s, the term was typically applied to businessmen who used exploitative practices to amass their wealth. These practices included exerting control over natural resources, influencing high levels of government, paying subsistence wages, squashing competition by acquiring their competitors to create monopolies and raise prices, and schemes to sell stock at inflated prices to unsuspecting investors. The term combines the sense of criminal ("robber") and illegitimate aristocracy (a baron is an illegitimate role in a republic).
In economics, the free-rider problem occurs when those who benefit from resources, public goods, or services do not pay for them, which results in an underprovision of those goods or services. For example, a free-rider may frequently ask for available parking lots (public goods) from those who have already paid for them, in order to benefit from free parking. That is, the free-rider may use the parking even more than the others without paying a penny. The free-rider problem is the question of how to limit free riding and its negative effects in these situations. The free-rider problem may occur when property rights are not clearly defined and imposed.
Physicians have been prescribing it as an herbal remedy for centuries. In 1640, the great English herbalist John Parkinson wrote about goat’s rue in his life’s work, Theatrum Botanicum, recommending it for “the bitings or stings of any venomous creature,” “the plague,” “measells,” “small pocks,” and “wormes in children,” among other conditions.
We share plenty of features with apes, but the shape of our feet isn't one of them. So that makes the discovery of human-like footprints dating back 5.7 million years – a time when our ancestors were thought to still be getting around on ape-like feet – a surprising one.