Concepts
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REFERENCE PERIOD: In extracommunity trade is the calender year during which the goods are imported or exported and is determined by the date of acceptance of the Single Administrative Document by Customs Authorities. In intracommunity trade is the calendar year during which the event that originates the intracommunity transaction occurred, i.e., for arrivals, at the time of receipt of the goods by the company and for dispatches, at the time the goods left the company.
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PRODUCTION INDEX: Relative number that aims to measure changes in production volume at short and regular intervals, relatively to a period of time taken as reference. Under the assumption of stability of technical coefficients, this index also measures the trend of value added in volume.
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ECONOMIC ACTIVITY: Combination of resources such as labour, raw materials, equipment, etc., are joined, leading to the creation of specific goods or services. Regardless of the factors of production integrating the good or service produced, all activities generically imply an input of products (goods or services), a production process and an output of products (goods or services).
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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.
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