Marginal REVOLUTION

Is this why China finds it so hard to inflate producer prices?

Brief

Jeffery (Jinfan) Chang & Wei Xiong's paper, highlighted by Tyler Cowen on Marginal Revolution (2026-08-05), uses aggregate and firm‑level analysis of listed industrial firms plus supply‑chain links to show China's credit expansions sustain production and balance sheets rather than final demand. Aggregate monetary‑financial growth briefly lifts PPI but lowers it long‑run; firm liability growth coincides with weaker PPI, lower profits, higher leverage and inventory buildups.

Why it matters

Jeffery (Jinfan) Chang & Wei Xiong (paper cited by Tyler Cowen on Marginal Revolution, 2026-08-05) find that aggregate monetary‑financial expansion in China temporarily raises PPI inflation but depresses PPI over longer horizons, helping explain recurrent credit growth alongside persistently weak inflation.

Key details

  • Firm‑ and sector‑level evidence: liability growth among listed industrial firms is followed by weaker producer prices, lower profitability, higher leverage, rising inventories and reduced capacity utilization; supply‑chain asymmetry shows downstream liability growth raises upstream PPI, while upstream liability growth does not transmit downstream.
Source evidence

This paper investigates why China’s recurrent credit expansions have coincided with persistently weak inflation. We argue that this pattern reflects the country’s production-oriented monetary regime. At the aggregate level, faster monetary-financial expansion temporarily raises PPI inflation but depresses it over longer horizons. At the sectoral level, liability growth among listed industrial firms is followed by weaker producer prices, lower profitability, higher leverage, rising inventories, and reduced capacity utilization. We also find asymmetric supply-chain transmission: downstream liability growth raises upstream PPI inflation, while upstream liability growth does not generate a corresponding downstream price response. These findings indicate that credit expansion in China tends to sustain production and balance sheets rather than stimulate final demand. As a result, monetary policy operates less as a conventional tool for demand management and durable reflation, and more as a mechanism for preserving production capacity and supporting growth. That is from a new paper by Jeffery (Jinfan) Chang & Wei Xiong .  I have to say I understand the result but not exactly the mechanism.  I am reminded of Milton Friedman’s dictum not to focus too much on the first-order effects of an increase in money supply. The post Is this why China finds it so hard to inflate producer prices? appeared first on Marginal REVOLUTION .