For politicians, every vote is priceless.
But for campaigns seeking to put a more precise figure on the investment in voter contact needed to persuade someone to pick their candidate in races featuring two or more parties, David Broockman and Joshua Kalla may have an answer.
"Our best guess would be about $3,000," Broockman told WARC in an interview. "If you are a billionaire running for some office that you value a lot, maybe $3,000 a vote is worth it to you; you say, 'I think I need a thousand more votes to win, so I have to spend $3...