Number of mentions per 25,000 spoken words by Democrats and Republicans

Auto Democrats credited President Obama with the recovery of the auto industry after the 2009 bailout, while Republicans left the topic unmentioned.

Women Democrats used the word much more frequently, primarily in reference to women's health and equal pay.

Business Republicans were more likely to talk about businesses, emphasizing Mr. Romney's private-sector experience and plans to improve the economy.

Unemployment Many Republican speakers brought up the still-high unemployment rate and the number of Americans who remain jobless, while Democrats largely avoided the topic.