Key points are not available for this paper at this time.
Angus Deaton, Household Saving in LDCs: Credit Markets, Insurance and Welfare, The Scandinavian Journal of Economics, Vol. 94, No. 2, Proceedings of a Conference on Savings Behavior: Theory, International Evidence and Policy Implications (Jun., 1992), pp. 253-273
Angus Deaton (Mon,) studied this question.