He was reading that #PPI has a LEVERAGE relationship with #CPI .
Meaning an increase in #PPI causes a larger increase in #CPI due to ( multiple supply chain steps ) & each stage " tacks on " its own price increase ?
True ?
.
.
So every stage , manufacturing , shipping , distribution , warehousing , wholesale , retail ... each stage in the supply chain ... adds a new cost as each STAGE demands a profit margin.