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Portugal

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Statistics on the production of manufactured goods (prom)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Statistics Portugal (Instituto Nacional de Estatística - INE)

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The PRODCOM survey is conducted by Statistics Portugal (INE). This is an annual survey of the value and volume of products produced by enterprises in Portugal during the reference year.

It is carried out in compliance with EU Council Regulation on the Establishment of a Community Survey of Industrial Production (No.3924/91), repealed by the Regulation (EU) 2019/2152 of the European Parliament and of the Council of 27 November 2019 on European business statistics.

For reference period 2021 and onwards, according to Commission Implementing Regulation EU 2020/1197 (EBS Regulation), the current survey collects PRODCOM data on the physical volume and the value for Sold Production and Production under Sub-contracted Operations. The Actual Production refers to the actual volume of production.

Reported data include:

  • Volume of Sold Production
  • Value of Sold Production
  • Volume of Production under Sub-contracted Operations
  • Value of Production under Sub-contracted Operations
  • Actual Production

Data of sold production on own account and the sold production produced under sub-contracted operations are collected as part of the national industrial production survey but are not published with this breakdown at the national level.

31 August 2024

The purpose of the statistics is to report, for each product in the Prodcom List, how much has been produced in the reporting country during the reference period. This means that Prodcom statistics relate to products (not to activities) and, therefore, are not strictly comparable with activity-based statistics such as Structural Business Statistics. The NACE codes on which Prodcom codes are based are only used to identify the enterprises that should be surveyed.

The EBS regulation (2020) stipulates country-level business statistics on industrial production to be collected for three variables:

  • 251001 Sold production, defined as sold (invoiced) production, which may be carried out under the primary or secondary activities of the enterprise. It includes production sold (invoiced) between different kind-of-activity units belonging to the same enterprise.

Units: national currency (thousands) and (except for industrial services) quantity as defined in the PRODCOM List in force at the end of the reference period

 

  • 251002 Production under sub-contracted operations, defined as the production under sub-contracted operations which has been sold (invoiced) to the principal, in line under the conditions for sub-contracted operations. The production may be carried out under the primary or secondary activities of the enterprise.

Units: (except for industrial services) national currency (thousands) and quantity as defined in the PRODCOM List in force at the end of the reference period.

 

  • 251003 Actual production, defined as production carried out during the reference period and within the economic territory of the country. It includes those products which, either in the kind-of-activity unit itself, or in another kind-of-activity unit belonging to the same enterprise:
    • are intended for sale,
    • are processed into another product
    • are fitted into another product, or
    • are put into stock.

Units: quantity as defined in the PRODCOM List in force at the end of the reference period.

The reporting unit is a proxy to KAU (kind-of-activity unit), principal and secondary activities.

The observation unit is the legal unit.

Enterprises whose principal activity, or one of its secondary activities, is listed in section B, C, D (35.11 and 35.30) or E (38.31 and 38.32) of the classification of economic activities in the European Community (NACE Rev.2).

 

Sample conditions:

A) For enterprises classified under industrial activities, the sample is divided in two components:

      i) exhaustive component: include all enterprises with turnover higher than 10 million euros, or higher than 1 million for some specific activities which are relevant for National or Agricultural Accounts purposes;

     ii) non exhaustive component: all remaining enterprises are sorted in descending order of their turnover, then selected considering the weight of the exhaustive component (for each activity):

a. equal or more than 80%: enterprises are included till 15% of turnover is achieved;

b. equal or more than 60% and less then 80%: enterprises are included till 35% of turnover is achieved;

c. less than 60%: enterprises are included till 50% of turnover is achieved.

Furthermore, we guarantee at least 5 enterprises in each activity and inclusion of some special enterprises that, even if they were not selected considering the previous conditions, are relevant at a product level. 

B) For enterprises classified under non industrial activities, all enterprises are selected if sales of products are equal or higher than 5 million euros. Furthermore, we also include enterprises that proved to be relevant in the last year's PRODCOM report (more than 2.5 million euros). 

For this survey we use SBS information (sales of products) to select the enterprises. A sample is selected and, using the product structure resulted out of responses, we apply it to the remaining enterprises that were not selected.

 

With this method we had a major reduction in the sample size (approx. 60%) compared to the previous methodology (before the year 2012), and the quality was improved, getting a better coherence with SBS and achieving a better coverage in some specific products.

Industrial production on national level.

Latest data refers to the calendar year 2023.

Provisional data:

The response rate to the PRODCOM Survey, for 2023 provisional data, was of 87% (97% of turnover).

The non-response units (units with no information or not usable information) were imputed with the last year response, updated with the SBS information (rate of change for each unit), or estimated based on SBS information, corresponding to 3% of total of product sales. 

All enterprises that are not included in the sample, are estimated using product sales from SBS data. The SBS estimation rate corresponded to 8% of total of product sales.

External data sources are used for the mining industries (only available in December).

Since total industrial production is checked versus SBS totals, the accuracy is high. The information is obtained for all units of the SBS (industrial activity) (see also 13.2. Sampling error).

For value: in thousands EUR

For volume: physical units indicated in the Prodcom list (kg, m2, number of items, etc.). For more info about the units - please see the annex below.

Annexes:
List of measure units used in PRODCOM

Once the micro data quality is fulfilled, imputation and estimation procedures can be performed. For each enterprise, SBS sales answer is distributed using the previous year's products answer structure. For all other units which did not respond last year, the total response in the activity for the reference year is used to distribute the products. All SBS enterprises are considered to calculation.

Results are aggregated at PRODCOM (or national product and activity) level and macro analysis are performed, like cross-checking with last year information and STS results.

Note: SBS information used correspond to year 2022 in the moment of providing 2023 provisional data. For PRODCOM 2023 final data, SBS for 2023 will be available.

 

Main reference: Survey sampling reference guidelines from Introduction to sample design and estimation techniques (Eurostat, 2008).

We collect PRODCOM information by intermediate of a survey.

Sample conditions:

A) For enterprises classified under industrial activities, the sample is divided in two components:

      i) exhaustive component: include all enterprises with turnover higher than 10 million euros, or higher than 1 million for some specific activities which are relevant for National or Agricultural Accounts purposes;

     ii) non exhaustive component: all remaining enterprises are sorted in descending order of their turnover, then selected considering the weight of the exhaustive component (for each activity):

a. equal or more than 80%: enterprises are included till 15% of turnover is achieved;

b. equal or more than 60% and less then 80%: enterprises are included till 35% of turnover is achieved;

c. less than 60%: enterprises are included till 50% of turnover is achieved.

Furthermore, we guarantee at least 5 enterprises in each activity and inclusion of some special enterprises that, even if they were not selected considering the previous conditions, are relevant at a product level. 

B) For enterprises classified under non industrial activities, all enterprises are selected if sales of products are equal or higher than 5 million euros. Furthermore, we also include enterprises that proved to be relevant in the last year's PRODCOM report (more than 2.5 million euros). 

For this survey we use SBS information (sales of products) to select the enterprises. A sample is selected and, using the product structure resulted out of responses, we apply it to the remaining enterprises that were not selected.

 

With this method we had a major reduction in the sample size (approx. 60%) compared to the previous methodology (before the year 2012), and the quality was improved, getting a better coherence with SBS and achieving a better coverage in some specific products.

Annual data.

The dissemination on the website of Statistics Portugal is twice a year, in June/July (provisional data for n+1) and in December (final data for n+1).

The web questionnaire was made available at middle of February.

PRODCOM data are submitted to Eurostat within t+6 months.

Annual data of the Portugal industrial production statistics are released on Statistics Portugal website on the scheduled date:

  • The provisional data on the reference year is published in June/July (t + 6 or 7 months, t = reference year).
  • The final data on the reference year is published in December (t + 12 months, t = reference year).

There have been no delays in recent years.

The Prodcom statistics are available for the national territory of Portugal as a single geographic area.

On an European level, compliance with PRODCOM regulation allows comparability of data with other EU countries.

According to EBS regulation (2020), from reference year 2021 onwards, new variables were transmitted to Eurostat, distinguishing subcontracting production and sold production. Only data for Actual Production variable is comparable with previous years.

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