Five cents. That’s how much general-news newsletter 1440 makes each time one of its 3 million subscribers opens one of its daily emails. Say what you want about scale, but nickels can add up when the multiplier is in the millions. After paying for the expenses of its 14-person team, the profits are then invested back into growing 1440’s subscriber base with paid marketing campaigns through Facebook and Instagram, newsletter ads and other channels. That “flywheel” has enabled 1440 to enter an exclusive club: It generates over $1 million in revenue per employee.

1440 CEO Tim Huelskamp joins the show to discuss taking a unit-economics approach to publishing.