Although the concept of randomized assignment to control for extraneous factors reaches back hundreds of years, the first empirical use appears to have been in an 1835 trial of homeopathic medicine. Throughout the 19th century, there was primarily a growing awareness of the need for careful...

Despite the successes of automatic enrollment (AE) in raising participation, a significant share of 401(k) enrollees remain at-risk for retirement insecurity. We assert that this risk may be shaped by an employee's initial decision to either confirm enrollment at the default rate or to...

Although the concept of randomized assignment to control for extraneous factors reaches back hundreds of years, the first empirical use appears to have been in an 1835 trial of homeopathic medicine. Throughout the 19th century, there was primarily a growing awareness of the need for careful...

We randomized over 5,000 US individuals in poverty to one of three conditions during the first year of the COVID-19 pandemic: receiving a one-time $500 unconditional cash transfer (UCT; half a month’s worth of total household income for the median participant; N=1,374), a $2,000 UCT (two...

We introduce a modification to the two-timescale games studied in the evolution of preferences (EOP) literature. In this modification, the strategic process occurring on the long timescale is learning by an individual across his or her lifetime, not natural selection operating on genomes over...

We propose that individuals consider future versions of themselves to truly be separate persons, not simply as a convenient modeling device but in terms of actual brain systems and decision]making processes. Intertemporal choices are thus quite literally strategic interactions between multiple...

Firms often face choices about when to upgrade and what to upgrade to. We discuss this in the context of upgrading to a new technology (for example, a new computer system), but it applies equally to the upgrading of processes (for example, a new organizational structure) or to individual choices...

We study an in.nitely-repeated .rst-price auction with common values. Initially, bid-ders receive independent private signals about the objects. value, which itself does not change over time. Learning occurs only through observation of the bids. Under one-sided incomplete information, this...