A 24-hour nationwide consumer spending freeze, orchestrated in response to corporate and political greed, will begin on Friday.

A grassroots movement's "economic blackout" calls on consumers nationwide to avoid shopping at major retailers Friday in protest of corporate greed. Why it matters: The 24-hour boycott, organized by The People's Union USA,

Social media users are calling for a boycott. Economics and business professors weigh in on the movement's efficacy.