early product mgr & first lead PM @stripe. product advisor. formerly @twitter @google @yahoo. my tweets are useful for some—useless for many—not for everyone ❤️

American economist, columnist, and blogger. Professor at George Mason University, holding the Holbert L. Harris chair in the economics department. Co-host of the economics blog Marginal Revolution and co-founder of Marginal Revolution University.

@bloombergbeta invests in elegant tools for a more civilized age, of the San Gabriel Valley, is part of a long approximation process, likes troublesome people