In proof of stake, the creator of the next block is chosen by various combinations of seemingly random selection along with other factors such as worth and age. (coinstaker.com)
We estimate the cost of various types of attacks on proof of stake currencies and compare it with the cost of similar attacks on a proof of work currency. (bitfury.com)
With proof of stake, there is no competition among your peers and no excessive energy usage while solving complex equations, which can make it much more cost - effective. (ibtimes.com)