Six months after the Asian tsunami, a leading international charity says the poorest victims have benefited the least from the massive relief effort. A survey by Oxfam found that aid had tended to go to businesses and landowners, exacerbating the divide between rich and poor. The poor were likely to spend much longer in refugee camps where it is harder to find work or rebuild lives. The survey points to the marginalisation of dalits - outcasts in India - and specific problems in Sri Lanka where aid has gone to businesses and landowners rather than the landless. This poverty gap is worst in Aceh, the Indonesian province which was the most badly affected area, already impoverished by conflict before the tsunami hit. Half a million survivors were homeless. Yet the wealthier among them have already been able to move out of temporary camps. Another survey by a group of British academics monitoring the delivery of aid has found that, six months on, there is little evidence of permanent accommodation being built for most people.