第一，以强制储蓄理论、流动性约束理论、委托代理理论和互助性理论为基础，从理论层面对住房公积金制度运行的支撑理论进行剖解。
Firstly , it analyzes the supporting theory of housing accumulation fund system in theoretical aspect , which is based on mandatory savings theory , liquidity constraint theory , principal-agent theory and mutual aid theory .
流动性约束理论