Members vote on which investments within an agreed upon list of investments they believe should be bought and sold. Members can be general members or experts. Records of each member's voting history are retained and compared against market data showing actual gains and losses associated with each investment. Members whose votes are consistent with actual performance (they made good selections) are given higher weights; members whose votes are inconsistent with actual performance (they made bad selections) are given lower weight. Investment assets are bought and sold based on the collective vote of the members. Members are rewarded for a good voting record by receiving an additional share of the incremental profit of the collective investment.