How Long Does a Humanitarian Crisis Last?

According to estimates by the United Nations, the average humanitarian crisis lasts:

Nine weeks.

Nine months.

Nine years.

Read on: A more sustainable approach to long-term aid would prevent empty water bottles piling up, syringes littering refugee sites and discarded batteries sickening children scavenging for valuable metals.

Fake online reviews litter sites like Amazon. To identify and delete them, sites should:

Wait for customers to complain about shoddy products purchased because of glowing reviews.

Analyze the reviewers, who’re often part of highly organized fake review networks.

Analyze the reviews for word patterns and false notes.

Read on: Focusing on reviewers, often recruited on Facebook groups, researchers’ model identified fake reviews with 93% accuracy.

Programs that allow utilities to reduce a household’s energy usage temporarily, to curb systemwide usage during peak times, in use for years:

Could save 38% more money with some tweaking.

Will likely become less efficient as consumers weary of the arrangements.

Are already as efficient as they can be.

Read on: Subjecting households to fewer, slightly longer reductions made the arrangements more appealing to customers, researchers found.

Modern day societies that have grown out of animal herding cultures:

Are less inclined to engaged in violence and revenge.

More inclined.

A. No more or less inclines than today’s societies that grew out of nonherding cultures.

Read on: Researchers found a correlation between the intensity of ancestral herding and current appetite for conflict.

Sending primary care physicians data on how they rank against peers in getting patients to schedule preventive care tests:

Made the doctors happier in their work and resulted in more tests.

Made the doctors less happy in their work but resulted in more tests.

Made the doctors less happy in their work and was ineffective at getting more tests scheduled.

Read on: Physician burnout is already a problem, so health systems need to be careful about nudges that undermine job satisfaction.