If you raise your bid then Google will raise the price you pay it seems... I do know people have done this... drop it a penny for a few days and then drop another penny a few days later. They drop until it affects their placement, when you find what price drops your placement then you find out what bid price you need to have to maintain a specific position. Don't take such steep hikes either way...

How long have you been running your campaign?
Adwords takes many things in account. If your quality score is great and your click through rate is high then your bids get lower.

Now i think it's too early to make any conclusions here but there isn't much a difference with your stats. You still average a number 3 position and your cost per click went up 4 cents. I don't think 4 cents is going to stick because the change has only been in effect for a few hours.

The people occupying position 1 and 2 may well be paying more per click (upwards 50 cents or more) they could also be paying far less. Your ctr and conversion rates are major factors to determining your average position and cost per click.

That is the strategy most of people do, and it is not the best one, because
you are into a deep pocket war, the most misunderstood metric in Adwords is the
CTR, if you have a better CTR than the competition you can get the first place even
if you are paying less per click.

The right way to do this is to make an A/B testing with different adds and try to
put the best add each time, after you have a winner, test with another add, this
is an ongoing process and if you have a higher CTR than the current number one position
you will get the 1 Google spot even if you are paying less per click than them.