Do natural disasters increase charitable giving or simply reallocate a fixed supply of donations? We study this question using Internal Revenue Service data in the context deadly tornadoes. find that among zip codes located same state but more than 20 miles away from tornado’s path, donations by households about $2 million per tornado fatality. no negative effects fatalities on to charities the...

La part de l’aide humanitaire croît dans totale. Or les acteurs impliqués restent peu étudiés. Cet article documente la fragmentation à un double niveau : celui des donneurs et terrains. Le jeu délégation entre deux peut réduire effets négatifs l’aide. À partir trois études cas, le lien fragmentation, efficacité est il...

Volunteering plays a prominent role in the charitable provision of goods and services, yet we know relatively little about why individuals spend time and money to the charity. Assuming that volunteering is a consumption good, we analyze the determinants of individuals’ charitable cash donations and volunteer labor as well as the interdependence between both goods. Using data from the European S...

Cytogenetic data were studied in 26 patients with de novo acute myeloid leukemia (AML) with minimal myeloid differentiation, corresponding to the MO subtype of the FrenchAmerican-British classification, in correlation with cytoimmunologic and clinical findings. Clonal abnormalities were detected in 21 cases (80.7%). 12 of which had a complex karyotype. Partial or total monosomy 5q and/or 7q was...

This paper presents a model of a card payment system to address the pricing and rules that govern such systems. It evaluates the social optimality of privately set interchange fees and the adoption of a rule by payment systems to prevent merchants surcharging for card transactions using two extremes of merchant pricing—monopolistic pricing and perfect competition. Both types of merchant pricing...

This paper uses a disclosure policy, the Nursing Home Quality Initiative, which mandates the public reporting of quality information on selected dimensions, to investigate the theories of nonprofits. My main finding is that nonprofits are as responsive as for-profits to quality disclosure: quality improves along the disclosed dimensions and diminishes along the less disclosed ones. I also find ...