The IECom is based on the results of the Integrated Business Accounts System and allows to estimate the breakdown of turnover by products sold for trade enterprises (section G of NACE Rev. 2, covering vehicles trade, wholesale trade and retail trade). The UCDR survey is targeted to retail establishments considered with a relevant dimension, providing detailed results in particular according to the type of food or non-food retail establishments, by region, by groups of sales area, among others.
Instituto Nacional de Estatística - Trade Statistics : 2011. Lisboa : INE, 2012. Available at www: <url:https://www.ine.pt/xurl/pub/153374285>. ISSN 2182-0147. ISBN 978-989-25-0161-1