Dr. Roger Arnold is at California State University San Marcos, where his fields of specialization are general microeconomic theory and monetary theory. Dr. Arnold earned his BS in economics from the University of Birmingham in England. He received his Ph.D. in economics from Virginia Tech. Dr. Daniel Arnold is a research scientist in the School of Public Health at Brown University, where his field of specialization is health economics. He received his BA in economics and mathematics from Cornell University. He received his Ph.D. in economics from the University of California Santa Barbara. Dr. David Arnold is at University of California San Diego, where his fields of specialization are labor economics, imperfect competition and discrimination. He received his BA in economics from the University of California Berkeley. He received his Ph.D. in economics from Princeton University.