Economist: The market should not predict CPI based solely on the performance of PPI

ChainCatcher news, usually, there is sometimes a certain correlation between the weakness of PPI and the same month's CPI. However, Stephen Stanley, an economist at Santander Bank, said that weaker-than-expected U.S. PPI data for December does not necessarily mean that December's CPI data will also cool down. Especially for core CPI excluding volatile food and energy prices, this correlation is even less clear.

He pointed out that food and energy prices do show good correlation between these two indicators, but other commodity categories have lower correlations. "My forecast for CPI only relies on PPI forecasts in terms of food and energy parts while it doesn't apply to core CPI," Stanley said.