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Headline inflation and Philippine commodity prices

PSA all-items Consumer Price Index. Measured as its month-on-month change, so a move here is a month of inflation. This page lists every Philippine commodity price whose monthly changes measurably track it, the delay between the two, and how much of the move carries through.

Headline inflation is an index or rate rather than a price, and it can sit near or cross zero. Percentage changes in a series like that are unstable, so the figures below are best read as direction and timing rather than as a “10% move produces X” rule.

The strongest link currently measured is Onion, yellow granex (Bermuda white) (Farmgate (PSA)), which moves against headline inflation with a correlation of -0.55 at a lag of 12 months, measured over 25 overlapping months.

Commodities that move with headline inflation

33 links that clear both the significance and sample-size tests, strongest first.
CommodityCorrelationLagElasticityMonthsStrength
Onion, yellow granex (Bermuda white) Farmgate (PSA)-0.5512 months-125.0025strong
Rice (Regular-milled) Retail (PSA)+0.54same month+2.33104strong
Rice (Well-milled) Retail (PSA)+0.52same month+2.03104strong
Rice (Special) Retail (PSA)+0.50same month+1.37104strong
Rice Premium Wholesale (PSA)+0.49same month+2.10103moderate
Regular Milled Rice (RMR) Wholesale (PSA)+0.47same month+2.53103moderate
Well Milled Rice (WMR) Wholesale (PSA)+0.44same month+2.14103moderate
Rice Special Wholesale (PSA)+0.40same month+1.61103moderate
Carrot Retail (PSA)+0.40same month+9.42104moderate
Mango Piko Farmgate (PSA)-0.378 months-36.4667moderate
Mango (Kalabaw) Retail (PSA)+0.3712 months+6.6892moderate
Bangus/Milkfish (Medium) Retail (PSA)+0.37same month+1.16104moderate
Galunggong (Medium) Retail (PSA)+0.37same month+2.27104moderate
Tilapia Retail (PSA)+0.37same month+0.82104moderate
Banana Lakatan Farmgate (PSA)+0.362 months+5.9799moderate
Eggplant Retail (PSA)+0.36same month+7.51104moderate
Cassava Retail (PSA)+0.36same month+1.08104moderate
Mango Carabao, ripe Wholesale (PSA)+0.3612 months+18.0191moderate
Chicken (Whole Broiler) Retail (PSA)+0.36same month+1.27104moderate
Coffee Liberica (green coffee beans) Farmgate (PSA)-0.359 months-23.4434moderate
Ampalaya Retail (PSA)+0.35same month+5.63104moderate
Squash Retail (PSA)+0.351 month+6.02103moderate
Tobacco Virginia Farmgate (PSA)-0.34same month-26.0349moderate
Squash Wholesale (PSA)+0.33same month+14.90103moderate
Pepper bell Wholesale (PSA)-0.333 months-15.30100moderate
Mango Carabao, green Wholesale (PSA)+0.3312 months+13.7372moderate
Matang-baka [Big-eyed scad] Wholesale (PSA)-0.328 months-5.5495moderate
Potato Retail (PSA)+0.31same month+3.83104moderate
Onion (Red) Retail (PSA)+0.31same month+8.60104moderate
Carrots Wholesale (PSA)-0.314 months-15.4299moderate
Tomato, ripe Wholesale (PSA)-0.312 months-21.03101moderate
Cauliflower Wholesale (PSA)+0.317 months+23.5896moderate
Bangus [Milkfish] Wholesale (PSA)+0.30same month+1.76103moderate
Correlation is measured on month-on-month percentage changes at the lag shown. Elasticity is the percentage move in the commodity per 1% move in the driver at that lag. Months is the number of overlapping monthly observations behind the estimate.
Last recomputed 2026-10-08.

How this is measured

  1. Both series are bucketed to monthly and converted to month-on-month percentage change, so a slow-drifting price level cannot manufacture a correlation.
  2. The commodity's monthly change is regressed on the driver's change at every lag from 0 to 12 months.
  3. The lag with the strongest correlation is kept; ties resolve toward the shorter lag.
  4. The link is labelled strong, moderate, weak or none from the correlation and its p-value together — strong requires a correlation of at least 0.5 at p < 0.01, moderate at least 0.3 at p < 0.05.
  5. Pairs with fewer than 24 overlapping monthly observations are excluded from every ranking on this site, however strong they score. With thousands of comparisons run each night, thin pairs clear a significance test on noise alone.

Other drivers

Bank average lending rate (BSP)
58 links
BSP policy rate
48 links
US deep-sea freight PPI (BLS)
38 links
Global supply-chain pressure (GSCPI)
33 links
El Niño / La Niña (ONI)
31 links
NCR regional inflation, all items (PSA)
19 links
Palm oil (World Bank)
19 links
USD/PHP (BSP)
19 links
Maize (World Bank)
19 links
US Fed funds rate (FRED)
17 links
Crude oil, Brent (World Bank)
16 links
Rice, Thai 5% (World Bank)
14 links

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These are statistical associations measured from historical co-movement, not proven causation, and they are not a forecast of any individual price. Figures are recomputed nightly from official published data and change as new releases land. Informational only — not financial advice.