Mining pool gives Reward for 0 Shares..?!!

[krnaveen14]

I was doing mining in minerpools.com for some fun. Most of the times I can found this in Round option. Why does anyone receiving payouts if they don't have even 1 shares? This is not for just one block. I'm seeing it regularly in there.

[sumantso]

The shares carry over, its to average out the luck.

Lets say there is a short round where you don't get much hashes, but a longer round where you get relatively more, then you're losing out. PPLNS aims to average this out and minimize variance.

[krnaveen14]

The shares carry over, its to average out the luck.

Lets say there is a short round where you don't get much hashes, but a longer round where you get relatively more, then you're losing out. PPLNS aims to average this out and minimize variance.

Just now read about PPLNS, now I can understand it. Thanks