[ufov2]

If the wealth created in a transaction is proportional to the size of the transaction, that sounds like it would increase the Gini coefficient. Most new wealth is created by transactions involving those with the most wealth, and redistributed to them. Probably simple to check in the simulation. Whether this is any good as a model for the real world is then a different question...

[xapata]

You could make a parameter for that wealth creation factor and see if the value affects the system dynamics.