The economic contribution as a result of the production of infrastructure assets due to investment is presented for valued added (GDP), compensation of employees and number of jobs. Value-added is a key measure of economic performance. It represents the output of an industry minus the value of intermediate inputs that were used up in the production of the goods and services. Within the Infrastructure Economic Accounts, this is the value added due to an industry's production of infrastructure assets. The number of jobs represents the number of jobs held by the self-employed, employees and unpaid family workers. The compensation of employees represents the wages and salaries, and supplementary labour income due to labour inputs for the production of infrastructure assets.