存量房贷偿付平滑与居民消费修复 ——非常时期家庭现金流约束的政策机制

中文摘要

居民部门由加杠杆转向主动降杠杆后，降低融资成本和增加信用供给未必同步转化为家庭新增负债与消费。2026年上半年人民币贷款增加10.72万亿元，其中住户贷款减少3668亿元，而企（事）业单位贷款增加11.13万亿元，居民端信用需求与实体融资总量出现明显分化。2024年存量房贷利率批量下调已惠及超5000万户家庭、每年减少借款人利息支出约1500亿元，表明降低住房债务负担具有现实需求；但降低债务价格与平滑偿付时序并不等价。在宏观需求明显走弱等非常时期，可面向高房贷偿付负担、低流动资产且仍具持续偿债能力的自住家庭，构建不减免本金、阶段性降低偿付强度、缓冲期后重新摊销的存量房贷偿付平滑机制。单位规模情景显示，每1000万户家庭若月均释放2500元现金流，年度可释放3000亿元；边际消费倾向为0.3—0.7时，第一轮直接消费增量约900亿—2100亿元。该机制应与存量房贷利率调整、增收减负和消费品以旧换新等政策形成互补，既允许必要的预防性储蓄，也可将数字人民币智能合约作为自愿消费激励和政策评估的可选模块。政策可行性取决于状态依赖触发、规则化准入、银行流动性与增量利息成本分开核算、风险分类预协调以及小规模可逆试点。

Abstract

When households shift from leveraging up to active deleveraging, lower borrowing costs and greater credit supply do not necessarily translate into new household borrowing and consumption. In the first half of 2026, RMB loans increased by RMB 10.72 trillion, of which household loans declined by RMB 366.8 billion while loans to enterprises and public institutions increased by RMB 11.13 trillion, revealing a marked divergence between household credit demand and aggregate financing to the real economy. The 2024 batch reduction in outstanding mortgage rates benefited more than 50 million households and reduced borrowers' annual interest expenses by about RMB 150 billion, demonstrating the real demand for lowering housing-debt burdens; however, reducing the price of debt is not the same as smoothing the timing of debt service. During extraordinary periods of pronounced macroeconomic demand weakness, a repayment-smoothing mechanism for outstanding mortgages can be built for owner-occupied households with high mortgage-payment burdens, low liquid assets, and sustainable long-run repayment capacity: principal is not forgiven, current repayment intensity is temporarily reduced, and the remaining balance is re-amortized after the relief window. A unit-scale scenario shows that for every 10 million participating households, a monthly cash-flow release of RMB 2,500 per household would free RMB 300 billion annually; with marginal propensities to consume of 0.3–0.7, first-round direct consumption would rise by roughly RMB 90–210 billion. The mechanism should complement mortgage-rate adjustments, income-support measures, and trade-in programs for consumer goods: it allows necessary precautionary saving, while programmable e-CNY smart contracts may serve only as an optional module for voluntary consumption incentives and policy evaluation. Policy feasibility depends on state-contingent triggers, rule-based eligibility, separate accounting of bank liquidity costs and incremental interest costs, pre-coordinated risk classification, and small-scale reversible pilots.

关键词：存量房贷；偿付平滑；居民消费；流动性约束

Keywords: outstanding mortgages; repayment smoothing; household consumption; liquidity constraints