• Data reference period
• Place of residence (Portugal)
• Earnings components
• Technology intensity and knowledge intensity (NACE Rev. 2)

• 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.
• BASIC REMUNERATION:  The gross amount, before deduction of taxes and social security contributions, in cash or in kind, paid regularly in the reference period and corresponding to the normal working period.

Total gross monthly earnings per employee = Total gross earnings (all components) paid by employers on month m / Number of employees on month m