There have been related studies. I can't find the reference now, but there was a study done in Poland after the break up of the USSR on how to best aid its econ

There have been related studies. I can't find the reference now, but there was a study done in Poland after the break up of the USSR on how to best aid its economy get going. They found that it was better to give the aid to the already established businessmen (wealthy) than the population in general (which was mostly poor). That these businessmen would invest the aid in their business which would create localized, long lasting economic improvements. Where the general disbursement of aid would help for a little while then fall off. These guys obviously weren't the 0.1%, but people do try to study these things.