The main difference between headline inflation and core inflation is what they include in their measurement. Headline inflation includes all items in the consumer price index (CPI)—including food and energy—while core inflation removes food and energy prices because they tend to be very volatile or unstable.In countries like the Philippines, prices of rice, meat, vegetables, electricity, and fuel can change suddenly due to typhoons, global oil prices, or supply issues. This makes headline inflation swing up and down, even if the rest of the economy is stable. For example, when a super typhoon hits Mindanao and damages crops, rice prices can spike, pushing up the headline inflation rate for that month.Core inflation, on the other hand, gives a better sense of the underlying trend in inflation. It focuses on more stable categories like housing, education, health, and transportation (excluding fuel). Policymakers like the Bangko Sentral ng Pilipinas (BSP) often focus on core inflation when deciding how to manage interest rates, because they want to avoid reacting too strongly to short-term shocks.This distinction is important because the wrong response to inflation can hurt the economy. If the BSP raised interest rates every time food prices went up due to a storm, it could slow down the economy unnecessarily. But if core inflation is rising, it may be a sign of a deeper issue—like too much money in circulation or too much demand—and action is needed.In short, headline inflation shows the full picture, but core inflation helps see the real direction of prices. Both are useful, but for long-term stability and proper policy decisions, core inflation is often more reliable.