Those looking for bubble indicators have further evidence to hand.

ECONOMIST: Why emerging markets are flavour of the moment

On the other hand, it is important to note that incorporating price momentum indicators, such as relative strength, do help improve the performance of otherwise fundamentally-based stock screens.

FORBES: Are Stock Prices Random Or Chaotic?

On the one hand, history has shown that stock market advances can be leading indicators of future advances in the economy by as much as six months.

FORBES: The Stock Market And The Economy: A Tale Of Two Cities