China's economic engine is faltering as cheap lending to low-quality borrowers undermines Beijing's policy effectiveness. The Wall Street Journal reports that one of China's primary economic tools is becoming less efficient, raising concerns about the sustainability of the country's growth model. This development signals potential trouble for an economy heavily reliant on credit expansion to drive activity.

For years, Beijing has used aggressive lending policies to stimulate growth, particularly during economic slowdowns. However, the focus on quantity over quality has created a debt burden that now threatens to derail the very engine it was meant to power. The shift away from productive investments toward propping up struggling borrowers suggests a fundamental weakness in China's economic structure.

As credit growth slows, the implications extend far beyond China's borders. The country's role as a global growth driver means any faltering could have ripple effects throughout international markets. With traditional stimulus measures losing effectiveness, policymakers face difficult choices about how to maintain momentum without exacerbating existing vulnerabilities.