Peer interactions have been argued to play a major role in student academic achievement. Recent work has focused on measuring the structure of peer interactions with the location of the student in their social network and has found a positive relationship between student popularity and academic...

As employer-provided pension plans have largely shifted from defined benefit (DB) to defined contribution (DC) pension plans, responsibility for plan investments and the accompanying risks have also shifted from the provider to the employee. Employees have to decide how much to contribute to...