 In the 20th century, local governments in Mexico have promoted municipal or public markets or to better regulate the selling of goods traditionally available in .In Mexico City, some of the better known of these markets are La Merced, Abelardo L. Rodriguez Market and Mercado Lagunilla.La Merced is located in an area that had been a huge for most of the colonial period as it was located at the edge of a lake (now drained).