The supply school believes that only by understanding the tax effect of the above-mentioned income transfer can we hope to design a social welfare system that can help those who really need help and give the greatest incentives to those who work. Only when people work Only when the country saves and then raises the national capital stock can there be a distribution of national wealth. The "tax effect of the aforementioned income transfer" most likely refers to:. ["The role of the current tax system in protecting workers' incentives is not enough.", 'The current tax effect is to guarantee the minimum income and living needs of the poor.', 'The current tax system encourages people to rely on benefits instead of working.', 'The current tax system is concerned with maintaining personal income levels and spending power.']