Published on 29 Jan 2019. Ashley Whillans, professor at Harvard Business School, researches time-money trade-offs. She argues more people would be happier if they spent more of their hard-earned money to buy themselves out of negative experiences. Her research shows that paying to outsource housework or to enjoy a shorter commute can have an outsized impact on happiness and relationships. Whillans is the author of the HBR article “Time for Happiness.”