I've long thought that every economic policy should be required to include an objective measure of its success, and that rather than explicitly voting, citizens could wager "vote credits" on the success or failure of that policy. This would produce a market-implied success rate, and whether or not the policy passed would depend on whether there was a positive expectation outcome (i.e., whether the risk-adjusted rewards of success outweighed the risk-adjusted cost of failure).

Those who exceeded a certain amount of credits would receive a stipend, which adds financial incentive to participate.

The hard part of this is ensuring that the objective measure of success is a fair one. There'd be tremendous incentive to pervert the metrics. You'd need a social class of incorruptible and cloistered "oracles" or something.

Or just cut out the middleman and go straight to AI overlords :)