Speculators on futures price fluctuations who do not intend to make or take ultimate delivery must take care to zero their positions prior to the contract's expiry.
Since the prices of all other goods in the economy are determined by the price of the anchor good(s), they adjust to price fluctuations of the anchor good.
In the worst case, reactive elements can interact with the system and with each other to create resonant conditions, resulting in system instability and severe overvoltage fluctuations.
