Mexican Stock Exchange the entire North of the country, reaching over 100 listings. Soon after, businesses in Guadalajara started organising a third stock exchange, and in 1960, the Occidental Stock Exchange was established to serve the West coast of Mexico. Because of low performance in the Guadalajara and Monterrey stock exchanges, however, Congress passed in 1975 the Securities' Market Law, which prompted the Bolsa de Valores de México to change its name to Bolsa Mexicana de Valores (Mexican Stock Exchange) and merge the other two exchange houses into it, creating thus the single entity that remains to this day the only stock exchange
Dioscorea mexicana caudex, bear heart-shaped leaves. "Dioscorea mexicana" ranges from the state of San Luis Potosí in northeastern Mexico south to Panama. It is notable for its production of diosgenin, which is a precursor for the synthesis of hormones such as progesterone. Russell Marker developed the extraction and manufacture of hormones from "D. mexicana" at Syntex. Later the Mexican barbasco trade focused instead on "Dioscorea composita" instead, as this variety has a higher diosgenin content. Dioscorea mexicana Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus "Dioscorea". "Dioscorea mexicana" is a caudiciform dioscorea having either