Venkatesh Rao@vgr·Mar 15, 2015Question: which US socioeconomic class has the most *discretionary* income to spend in *aggregate*? http://investopedia.com/terms/d/discretionaryincome.asp…21
Naveen Palli@naveenpalli·Mar 15, 2015Replying to @vgra question before that, what are the US socioeconomic classes? @vgr1