This study makes it possible to establish the short-term evolution (quarterly) and the medium-term structure (annual) of establishments employing up to 10 persons, engaging in trade, services or industry around the country, according to the following variables: economic activity according to the isic revision 3 adapted for colombia; personnel employed, sales (trade), income (services) or production (industrial); time of operation; and legal organization. with respect to structure: gross production, added value, intermediate consumption and fixed assets. the information obtained to date is: for structure: years 2000 and 2001, and for evolution, the four quarters of 2002.