Indian sugar cane farmers’ cognitive performance is significantly lower before harvest, when their finances are stretched thin. Their performance improves after harvest, when financial concerns are alleviated. This result cannot be attributed to obvious factors, such as nutrition and stress levels.

Mani et al (2013) Science Magazine

Health & Education

The over-treatment of fever with anti-malarial medication has negative short run effects such as inefficient use of resources and ineffective treatment due to misdiagnosis. More interestingly, it also makes it more difficult for individuals to extract information about the new therapy’s effectiveness from past adopters’ outcomes, thus hampering adoption of the treatment by those who would benefit greatly from it.

Adhvaryu (2014) Review of Economic Studies