Ad. Foster et Mr. Rosenzweig, Imperfect commitment, altruism, and the family: Evidence from transfer behavior in low-income rural areas, REV ECON ST, 83(3), 2001, pp. 389-407
In this paper, we examine empirically whether risk pooling is more advantag
eous among altruistic compared to selfish agents in a framework where indiv
iduals cannot make binding commitments. In particular, we incorporate altui
sm into a model of risk sharing under imperfect commitment and use simulati
on methods to establish tests of the roles of both altruism and commitment
problems in determining the extent of insurance and the intertemporal movem
ents in interhousehold transfers. The tests are carried out using three pan
el data sets from two countries of rural South Asia that provide detailed i
nformation on transfers and enable the measurement of income shocks. The es
timates provide strong support for the notion that imperfect commitment sub
stantially constrains informal transfer arrangements, whether kin-based or
not, but also provide evidence that altruism plays an important role in ame
liorating commitment constraints and thus in increasing the gains from inco
me pooling.