In a Parecon, if talented individuals fail to gain extra incentives (either material or non-material) under the effort(or sacrifice)-based distribution system, while they can obtain far greater benefits under capitalism, such talented people will emigrate to capitalist countries. This will leave only less talented individuals remaining in the Parecon.
Does this mean that the effort-based distribution system of participatory economics is incompatible with the Incentive Compatibility Principle? If so, how can the Parecon survive in competition with the capitalist system?