The negativity of managerial word choice (managerial tone) on conference calls is a telltale indicator of a company's future. Specifically, increases in negativity, what we term bleak tone changes, strongly predict lower future earnings and greater uncertainty. However, decreases in negativity...

Managers conducting earnings conference calls display distinctive styles in their word choice. Some CEOs and CFOs routinely use qualifying words such as "approximately", "probably", and "maybe". They are vague talkers. Straight talkers, by contrast, use such words less frequently. Analysts and...