Estimating the Blood Supply Elasticity: Evidence from a Universal Scale Benefit Scheme

no code implementations • 3 Dec 2020 • Sara R. Machado

I instrument for the number of blood drives, which is endogenous, using a variable based on the number of weekend days and the proportion of blood drives on weekends.

I call BS: Fraud Detection in Crowdfunding Campaigns

no code implementations • 30 Jun 2020 • Beatrice Perez, Sara R. Machado, Jerone T. A. Andrews, Nicolas Kourtellis

Donations to charity-based crowdfunding environments have been on the rise in the last few years.

Blocking Fraud Detection