Tariffs could be calculated based on differential fringe benefits.
I.e. if a plant in china has 5% direct labor costs but 2% fringe as there is less insurance, social security/medicaid, days off etc, but a US factory has the same direct labor cost and another 5% for fringe as a percentage of the final product price, a tariff could be imposed that offsets that difference.
It would remove the incentive for Chinese employers to screw their employees by making the total compensation comparable even if the absolute level is lower.
I.e. you impose your social policies on your trading partners. not sure if WTO rules allow that.
But if so, it would put pressure on Chinese employers to raise benefits.
