Economic system simulation on the basis of ancient agricultural society

The essense of ongoing research consists in economic system simulation using physical economics theory. The basic principle of this science conception can be expressed as follows: human economic activity should be evaluated via physical parameters. Production powers should be expressed in social time (social time budget is the amount of labour available to humanity within a year, expressed in hours). The research subtask is to verify the theory via simulation models. Existing research resulted in verification of the following principle: as the human society develops the fraction of free time (time that is different from necessary time, spent by society to replenish the resources used) in general budget of social time must grow.