The Covariance Structure of Life Satisfaction

"I've taken one economics course in my entire life, but I still want to talk about that as an entity," he says. "What does it mean to say there is more economy, there is less economy? Can you expand that to something that has a sense of variability?" He continues: "You're going to throw causal indicators at me. You have been laying out a breadcrumb trail to the Wicked Witches house."