Vegetable Oils, Imports and Exports
FAO publishes this commodity's food-balance elements in two domains with different methodologies (historic 1961-2013 vs current 2010-2023); they disagree materially where they overlap, so both are kept as separate labelled series rather than spliced.
Related_Laws
Laws related to this measure. Correlation = how closely this law tracks this measure's story. Expected causation = how strongly we would expect it to have moved the line. Neither is a claim of proof.
1979CorrelationExpected causationAct on the Exemption of Vegetable Oil from Customs Duty, with Subsequent Amendments
Passed in 1979, this law exempts imports of vegetable oil, used as a raw material for edible oil production, from customs duty.
Why this link: This law directly exempts vegetable oil, a staple import, from customs duty, an explicit instrument targeting the cost and volume of vegetable-oil trade.
Caveat: Global vegetable-oil prices and Iran's exchange-rate regime also strongly shape trade volumes in this series.
Lag: Immediate, from date of enactment.1980CorrelationExpected causationBill Adding a Note as Note 2 to the Bill Exempting Vegetable Oil from Customs Duty
Passed in 1980 by the Revolutionary Council, this bill extends the existing customs-duty exemption on vegetable oil to soybean oil imported by the state-owned Trade Services Expansion Company.
Why this link: This 1980 amendment expands the customs duty exemption for vegetable oil, its explicit instrument directly lowering the import cost of this staple good, the exact commodity these trade and consumption charts track.
Caveat: Vegetable-oil trade and consumption volumes in this era were also shaped by wartime rationing, exchange-rate controls and state trading-company allocation decisions early in the revolution, so the duty exemption's isolated share cannot be fully separated from these.
1980CorrelationExpected causationLegal Bill Adding a Note to the Legal Bill on Customs Duty Exemption for Vegetable Oil, Approved 11/7/1358 (October 3, 1979)
A legal bill adding a note to an earlier legal bill that exempted vegetable oil from customs duties, approved October 3, 1979.
Why this link: Adds a customs-duty exemption clause specifically for vegetable oil imports, a direct, named channel lowering the landed cost of an imported food staple and thereby its domestic price and trade volume.
Caveat: Vegetable-oil prices and trade in this period were dominated by post-revolution currency controls, rationing and global commodity prices, so the exemption's own contribution cannot be cleanly separated from those larger forces.