Comparative Advantage in Brawn vs. Precision Tasks
RCTReview
Explaining why female casual laborers outperform male laborers in manual sorting tasks while accepting lower baseline reservation wages in rural agricultural economies.
Picture this
Compare two local job markets: heavy construction requiring physical lifting, and agricultural seed sorting requiring manual patience. Men have higher-paying outside opportunities in heavy physical labor, raising the wage they demand for sitting down to sort beans; women, whose routine domestic tasks align closer with manual sorting precision, hold a comparative advantage in detailed sorting and accept lower base pay.
What the evidence says
Women sort 0.76 more units per day (p < 0.01), commit 0.16 fewer errors per unit (p < 0.01), and accept reservation rates 2.3 to 3.0 MWK lower than men (p < 0.01).
- Who was studied
- N = 689 rural Malawian casual laborers (66.5% female, 33.5% male) across 1,875 daily decisions.
- How
- Field experiment measuring productivity and reservation wages using random-effects regressions with extensive individual demographic controls.
What to do
Align task assignments with gender-differentiated comparative advantages rather than assuming uniform productivity across agricultural tasks.
From the source
"Females sort 0.76 more units per day than men, and commit slightly fewer errors per unit (0.16)... This is plausible if women's outside options are more similar to bean sorting, while men's outside options depend more on physical capacity, as in the returns to brawn in Pitt et al. (2012)."
Productivity in piece-rate labor markets: Evidence from rural Malawi