Does online fundraising increase charitable giving? Using the Facebook advertising tool, we implemented a natural field experiment across Germany, randomly assigning almost 8,000 postal codes to Save the Children fundraising videos or to a pure control. We studied changes in the donation revenue...

Universal health coverage is a widely shared goal across lower-income countries. We conducted a large-scale, 4-year trial that randomized premiums and subsidies for India's first national, public hospital insurance program, RSBY. We find roughly 60% uptake even when consumers were charged...

I study consumers' choices in the retail electricity market. By conducting a largescale survey experiment with 3% of the Danish working-age population, I have gathered data on respondents' factual knowledge of the retail electricity market, their beliefs, preferences, and intentions to switch...

We evaluate a reading intervention involving 600 third-grade students in Chilean schools catering to disadvantaged populations. The intervention features an adaptive computer game designed to identify and improve weaknesses in literacy and cognitive skills, and is complemented by a mobile...

We investigate how to strategically motivate sales agents in intermediary markets. In collaboration with a large travel company, we run a field experiment with more than 1, 200 independently owned intermediaries that sell our study firm's own products as well as products from competitors to end...