How Does the Miner’s Revenue Stream in PoA Compare to That in Pure PoW?

In pure PoW, the miner receives the entire block reward (new coins + transaction fees) for successfully mining the block. In PoA, the miner receives only a fraction of the block reward for finding the blank block header.

While the PoA miner's revenue per block is lower, the overall security cost is shared, which can lead to a more stable, albeit smaller, revenue stream compared to the winner-take-all nature of pure PoW.