A few years back, I was honored to speak at the installment of my former professor Brock Blomberg as the next president of Urnisus College. My professor taught the Economics portion of the college’s distinctive Philosophy, Politics, and Economics program — a tutorial-based curriculum where you get a taste and a sense of the interconnections between these three key arenas of public life. Professor Blomberg was well aware that covering such deep and vast topics would be impossible in just four short years, indeed this was no triple major. Instead he recommended what he called, “Cocktail party economics”: a daft, yet light understanding of the topic sufficient enough to impress your guests at a cocktail party with a few simple charts and graphs on a handy napkin. Enough to get by, but not too much to bore your neighbors. Sound advice. Accordingly, at his recent inaugural I used this tactic to discuss the chosen topic, “Innovation.” As these illustrations took far more time than anything I’ve made in Keynote and Powerpoint, I figured I’d share them with a few tips on napkin writing for other kindred spirits.
Dummy Supply and Demand graph

Pro-tip: use the side of a notebook to draw straight lines; it’s next to impossible to do it by freehand on a flimsy napkin.
Pie chart to explain what data for a city is and means.

Exaggerated pie chart to explain that most mobile users open only a handful of apps only once.

Bar charts to illustrate Eric Reis’ observation that 99 percent of startups fail.

Workflow map of a hub-and-spoke model of organization

Workflow map of a networked organizational model

(Failed) Inspirational closing about being able to start fresh






