Why Pilot Programs Can’t Take Off

Evidence Action made headlines recently for doing something unusual: admitting its No Lean Season program for poor families in Bangladesh hadn’t worked at scale. The admission was a rarity; the scenario is not, writes Kelsey Piper.

In a follow-up piece, Piper dug into the reasons why. For one, scaling up is exceptionally difficult, and not often planned out well, says Mushfiq Mobarak, a Yale economics professor who led the No Lean Season probe, told Piper.

One stumbling point: basic laws of supply and demand. “If your intervention assumed that people could sell goat milk to support their families, it might not work once goats are everywhere,” Piper writes.

Vox

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