• Data reference period (Month)
• Geographic localization (Portugal)
• Agricultural product

• PRODUCT:  Good or service created within a production activity.
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
• ENTERPRISE:  Legal entity (natural or legal person) that is an organisational unit producing goods or services, which benefits from a certain degree of autonomy in decision-making, especially for the allocation of its current resources. An enterprise carries out one or more activities at one or more locations.
• PRODUCER PRICE:  Price of purchase from the farmer/producer or the price of the first sale by the farmer/producer, at the farm-gate or ex-works basis, excluding product subsidies on pruduct and including premium on quality (when existing) and taxes, minus deductible VAT.

Price index of Laspeyres