Base current in a Transistor!

[sahil_time]

Early effect states the collector current increases as we increase CE voltage in a common emmiter circuit due to base-width modulation. But how does the Early effect change the base current? Does base current remain constant or does it change?

[es1]

I think this post explains the early effect mechanism well.
http://www.physicsforums.com/showpost.php?p=1329920&postcount=6

Early effect does not change base current (or collector current) directly. It effects the forward gain of the transistor, which may in turn change base or collector current.