What psychology is at work when...

[Pirc Defense]

...your opponents tend to call your raises more often than call your limps? I play micro limits at Paradise and it seems that at times I get more callers preflop when I raise, than when I limp.

I've started to think it's ego-related; "you're not going to push me around!" goes their thinking.

It's an odd phenomena, and maybe it doesn't happen all that often, though it seems to occur more than it should. Maybe it's because if you raise often when you enter the pot, a limp looks suspicious?

Any others experience this?