Recent research at Harvard University’s Center for International Development (CID) suggests that tacit knowledge flows through amazingly slow and narrow channels. The productivity of Nuevo León, Mexico, is higher than in South Korea, but that of Guerrero, another Mexican state, resembles levels in Honduras.
哈佛大学国际发展中心（CID）的最新研究表明隐性的知识流通渠道令人意想不到的狭窄和缓慢。墨西哥新莱昂州的生产率超过了韩国，但另一个墨西哥州格雷罗州的生产率却只相当于洪都拉斯的水平。在墨西哥各州推广知识既缓慢又艰难。