We develop and analyze a tractable empirical model for strategic network formation that can be estimated with data from a single network at a single point in time. We model the network formation as a sequential process where in each period a single randomly selected pair of agents has the...

Research on happiness has produced valuable insights into the sources of subjective well-being. A major finding from this literature is that people exhibit a "baseline" happiness that shows persistent strength over time, and twin studies have shown that genes play a significant role in...

We address leadership emergence and the possibility that there is a partially innate predisposition to occupy a leadership role. Employing twin design methods on data from the National Longitudinal Study of Adolescent Health, we estimate the heritability of leadership role occupancy at 24%. Twin...