Data source(s) used: The 3rd October 2014 Istat released the new annual series of national accounts based on the new European System of Accounts (ESA 2010). At the same time, as in other European countries, the time series of national accounts have been subjected to an extraordinary revision, exploiting advances in methods and sources (e.g. the new balance of payments estimates issued by the Bank of Italy based on the new manual BPM6).Gross value added at basic prices: Gross value added at basic prices is output valued at basic prices less intermediate consumption valued at purchasers’ prices. The basic price is the amount receivable by the producer from the purchaser for a unit of a product or service minus any tax on the product plus any subsidy on the product.Gross value added at factor cost: Gross value added at factor cost is derived from GVA at basic prices by subtricting other taxes on production and adding other subsidies on production.Output: Output consists of the products created during the accounting period. Three types of output are distinguished: market output; output produced for own final use; other non-market output.Output at basic prices: Output is at basic prices when it is valued by subtricting taxes on products and including subsidies on products.Output at factor cost: Output at factor cost is valued by subtracting taxes and including subsidies.Compensation of employees, wages and salaries and social security contributions:Compensation of employees (D1) is defined as the total remuneration, in cash or in kind, payable by an employer to an employee in return for work done by the latter during the accounting period. Compensation of employees is broken down into: wages and salaries (D11): wages and salaries in cash; wages and salaries in kind; employers’ social contributions (D12): employers’ actual social contributions (D121); employers’ imputed social contributions (D122).Provision for severance pay:amounts which the employer sets aside in a special fund and pays to the worker upon termination of employment due to retirement, change of job or dismissal. It is included in actual social contributions. Other subsidies on production(D39): Other subsidies on production consist of subsidies except subsidies on products which resident producer units may receive as a consequence of engaging in production.Other taxes on production: Other taxes on production consist of all taxes that enterprises incur as a result of engaging in production, independent of the quantity or value of the goods and services produced or sold. Household consumption: It consists of the expenditure, including expenditure whose value must be estimated indirectly, incurred by resident households on individual consumption goods and services, including those sold at prices that are not economically significant and including consumption goods and services acquired abroad. It presents the final consumption expenditure of households broken down by the COICOP (Classification of Individual Consumption According to Purpose) classification and by durability. Gross fixed capital formation: Gross fixed capital formation consists of resident producers' acquisitions, less disposals, of fixed assets during a given period plus certain additions to the value of non-produced assets realised by the productive activity of producer or institutional units.Consumption of fixed capital: Consumption of fixed capital represents the amount of fixed assets used up, during the period under consideration, as a result of normal wear and tear and foreseeable obsolescence, including a provision for losses of fixed assets as a result of accidental damage which can be insured against.Gross capital stock: Gross capital stock refers to the cumulative flow of volume investments, corrected for retirement. In the gross stock, assets are treated as new until they are retired: it is assumed that they retain their full productive capacity until removed from the stock.Net capital stock: Net capital stock is the sum of the written-down values of all the fixed assets still in use; it can also be described as the difference between gross capital stock and consumption of fixed capital.Per capita values: per capita values are average values obtained relating economic aggregates (e.g., GDP, Households final consumption expenditure, value added, compensation of employees)to the number of inhabitants or to the variables concerning labour inputs.