The term "effect" has come to mean gazillions of nuances when it comes to investment. I'm just on my way out to work when a sudden headache gripped me. Could've been one of those migraine that one gets when stock markets rise and fall, one that is coined the "Aspirin Count Theory". The explanation is simple: when stock prices rise, people take less aspirin. In other words, there is wealth behind the Wall Street index rise, and thus there is less cause for people to worry.
