Most tax agencies use letters as the method of communicating with taxpayers. Still, other technologies exist that could be more effective. This paper reports the results of a field experiment conducted by the National Tax Agency of Colombia (DIAN), using phone calls to reduce tax delinquencies....

We use two randomized controlled trials in Bangladesh to study a simple water conservation technology for rice production called “Alternate Wetting and Drying (AWD)”. Despite proven results in agronomic trials, our first experiment shows that AWD only saves water and increases profits in...

We use two randomized controlled trials in Bangladesh to study a simple water conservation technology for rice production called "Alternate Wetting and Drying (AWD)". Despite proven results in agronomic trials, our first experiment shows that AWD only saves water and increases profits in...

Low-income families in the United States tend to live in neighborhoods that offer limited opportunities for upward income mobility. One potential explanation for this pattern is that families prefer such neighborhoods for other reasons, such as affordability or proximity to family and jobs. An...

This paper studies the optimality of matched-pair designs in randomized controlled trials (RCTs). Matched-pair designs are examples of stratified randomization, in which the researcher partitions a set of units into strata based on their observed covariates and assign a fraction of units in each...

Low-income families in the United States tend to live in neighborhoods that offer limited opportunities for upward income mobility. One potential explanation for this pattern is that families prefer such neighborhoods for other reasons, such as affordability or proximity to family and jobs. An...

In this paper we investigate behavioral constraints to savings among smallholder farmers in rural Ethiopia. Increasing savings by overcoming such behavioral constraints has been documented to have positive effects on various outcomes such as health, education, and agricultural investments. We...