of seniors being burdened with household care and thus aggravating health related issues. Posel and Casale ( 2003 ), Walker ( 2006 ) and others have reported studies on migration and its impact on the households as stressors. In this paper, we look into one effect of migration both separately and within the context of HIV/AIDS. Figure 6 summarizes the results of simulation runs addressing the issue of seniors taking over as household heads in the region. Four experimental settings have been used to investigate the possible combinations of the two major factors: HIV/AIDS incidence and migration. The amount of cash required for migration can significantly affect the results. For all simulation runs reported here we have used the estimated amount of 300 Rand. As there was no evidence available at the time of these experiments we chose a value that produced plausible migration patterns. Since then we were told by our domain experts that as much as 1000 Rand might be required for migration depending upon the travel expenditure. With higher cost, one can expect worse effects on households. We will investigate this further. In all the simulation batches, initial households were created with an adult agent as the household head, with 50% chance of being a female or male. During a run, the health and burial expenditure of some households increases due to HIV/AIDS. Food expenditure increases when new members join the household. As the majority of the households remain at the 'very poor' level, expenditures cannot be