January 21, 2016 Quartz
Emily Oster, associate professor of economics, answers questions about everyday problems from readers as part of Quartz' Ask Emily section. From the financial strains involved in visiting far flung friends and how much money is too much for a wedding, Oster analyzes the benefits one could derive.
Ask Emily: How do I determine how much money my friends are worth? (written by Emily Oster) – Quartz