A term used when smaller groups in a larger society keep their unique cultural identities, and their values and practices are accepted by the wider culture provided they are consistent with the laws and values of the wider society
They are used as radio waves, infrared radiation, visible light.
Friedman and Johnson (1997) show that for a wide range of dynamic optimization problems, supermodularity is both necessary and sufficient for monotone static results. In the present context, this implies that our supermodular model requires the minimum set of assumptions to obtain monotonicity in the optimal decision variables.
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The evidence presented here needs to be supplemented with information about inter- and intrafamily income transfers. This issue was addressed in a follow-up survey, but analysis of the results is not yet complete.
