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In finance, a perpetual futures contract, also known as a perpetual swap, is an agreement to non-optionally buy or sell an asset at an unspecified point in the future. . Perpetual futures are cash-settled, and differ from regular futures in that they lack a pre-specified delivery date, and can thus be held indefinitely without the need to roll over contracts as they approach expi
Perpetual inventory systems can still be vulnerable to errors due to overstatements (phantom inventory) or understatements (missing inventory) that can occur as a result of theft, breakage, scanning errors or untracked inventory movements, leading to systematic errors in replenishment. [2] The perpetual inventory formula is very straightforward.
The oldest example of a perpetual bond was issued on 15 May 1624 by the Dutch water board of Lekdijk Bovendams and sold to Elsken Jorisdochter. [2] [3] Only about five such bonds from the Dutch Golden Age are known to survive by 2023. [4] Another of these bonds, issued in 1648, is currently in the possession of Yale University. Yale bought the ...
Perpetual motion is the motion of bodies that continues forever in an unperturbed system. A perpetual motion machine is a hypothetical machine that can do work indefinitely without an external energy source. This kind of machine is impossible, since its existence would violate the first and/or second laws of thermodynamics. [2] [3] [4] [5]