Research

Technology adoption is lower in emerging markets with corrupt business environments, and higher in those with good transparency and enforcement, according to a new study forthcoming in Marketing Science.

A combination of community motivation and subsidies targeted to the poor is the most effective way to increase toilet ownership and use, and decrease open defecation, in developing countries, according to a new study published in the journal Science.

The concept of high-risk, high-return is a bedrock belief in finance, confirmed by decades of empirical data. But when Prof. Roger Ibbotson dug deeper into the data, things started to look a little different.

The online, user-generated review is a boon for consumers—a chance to sidestep promotional claims and get an honest assessment. But as soon as reviews appeared online, fake reviews followed. A study co-authored by Professor Judith Chevalier looks at the prevalence of fake hotel reviews and tests a hypothesis about who might post them and why.

Investment companies including Fidelity, Putnam Investments, and Voya Financial are rolling out tools that tell investors how their retirement savings compare to those of their peers. This social comparison is intended to motivate investors to increase their savings; however, new research shows that it can have the opposite effect.

The choices we make—the cars we drive, the neighborhoods we live in, the gyms we join—are influenced by our social networks, the people we surround ourselves with. Our financial choices are no exception. While thousands of studies have examined peer effects, a new study co-authored by Florian Ederer, assistant professor of economics, is the first to clearly identify the two channels of social influence—social learning and social utility—that explain why our peers’ financial decisions affect our own.

Retailers are increasingly offering products at rental rates that are comparable to traditional purchase prices. The question is whether consumers make decisions differently when they’re looking to rent rather than buy.

Large, investment-grade companies such as Walmart and Home Depot that can easily borrow money in the capital markets often receive financing from their much smaller, credit-constrained suppliers. A new study examines the effects of this pattern of financing and finds that it squeezes small suppliers, creating a cash shortfall and causing them to cut back on capital investments.

Children are 30% more likely to take a stimulant medication during the school year than they are to take one during the summer, according to a new study published in the American Sociological Review. The authors found that school-year increases in stimulant use are largest for children from socioeconomically advantaged families. Because many children use stimulants only during the school year and take a “drug holiday” in the summer, the authors conclude that these children are using stimulants to manage their schools’ academic demands.

The initial public offering (IPO) market recently saw its busiest week since 2001. A new study by Yale School of Management professors Matthew Spiegel and Heather Tookes reveals how these and other IPOs affect rival firms over time.