Investors should not delude themselves into thinking that this market behavior is the norm.

The central bank often does not announce its interventions, letting market behavior show a move has been made.

"Maybe to fully understand market behavior we have to introduce some form of irrationality," he acknowledged.

Thus, real causes and effects do govern market behavior.

Another common policy instrument used by governments to influence market behavior is taxation.

The potential exit became known as "Grexit" and started to affect international market behavior.

Indeed, some believe that models of market behavior with predictive power may be within reach.

Microsoft, well, they've proven that normal market behavior doesn't apply to them.

The benefits from risk pooling depend directly on the relative market behavior.

The price drifted lower for a few days-just normal market behavior in the absence of major news.