Seasonal scarcity and sharing norms

How does scarcity affect individual willingness to altruistically enforce norms of sharing with others and share? Sharing within informal communities offers an important insurance mechanism during adverse shocks. But may test the stability enforcement mechanisms norms. I conducted repeated incentivized economic experiments in a lean relatively plentiful post-harvest season same group Afghan subsistence farmers who experience seasonal scarcities annually annual scarcities. Enforcement weakens substantially times scarcity, while itself remains temporally stable. Leniency protect individuals cannot afford share from social sanctions, yet it also threaten result deterioration prosociality. The findings can help reconcile mixed evidence existing literature which has documented both resilience breakdowns response scarcity.