Why does a rise in High-Speed Diesel (HSD) price significantly affect inflation in emerging markets?

💡 Explanation:

High-Speed Diesel (HSD) is the primary fuel source for a nation's logistics sector (freight, public transit) and agricultural machinery (tractors, tube wells). A price increase for HSD raises the input cost for transporting goods and producing food, making it a critical driver of cost-push inflation for essential commodities.