First the bankers abolish the gold standard, to allow them to rapidly accelerate the speed at which they steal from us through currency-dilution. This, in turn, requires them to (illegally) manipulate the gold and silver markets -- in order to hide the true value of these metals from being expressed in the bankers' diluted paper. The government then makes it a "crime" for its own citizens to make a profit on their own money. In the bankers' scam of money-dilution, only the bankers are allowed to profit on their crimes.
It was at this point in history that the bankers were able to largely forget about manipulating the silver market (for many years), and to focus their energies on gold-manipulation -- because basic market fundamentals created conditions that depressed the price of silver, with only minimal "assistance" from the bankers (and their servants in government).
Clearly the price of silver has been driven in recent decades mostly by its industrial demand. And it is this industrial demand which (with a little help from the bankers) kept the price of silver well below its true value for more than thirty years (until early in this decade).
This leads us to a fundamental "truth" in the precious metals sector: investment demand (i.e. "speculative" demand) does not stimulate mine production (except in a very belated manner -- only after inventories have been exhausted), while industrial demand does stimulate higher levels of mine production, because the bankers will finance new mine-production based upon that level of industrial use. As an aside, it was because gold is not used to a great degree "industrially" that the bankers had to "persuade" the world's largest gold miners to enter into vast "hedging agreements" -- which simulated the same market conditions for gold: maximizing production at the lowest, possible price.In a true "equilibrium", this industrial production and demand would not cause silver to trade at a price well below its fair-market (equilibrium) value. However, the bankers ensured that the silver market could never reach such an equilibrium by continuing to dump their waning stockpiles of silver onto the market. As I have pointed out on many occasions, between 1990 and 2005, official silver inventories plummeted by approximately 90%. It is simple economics that any good which is grossly under-priced will be grossly over-consumed. Faced with the abrupt end to their silver-manipulation (which would make it much more difficult to continue to manipulate the gold market), the bankers fell back upon their oldest and most-favorite swindle: they sold paper to people, and pretended that the paper represented actual silver -- and thus SLV (SLV) was born.