Gregory Clark是美国经济史学家，著名不著名我倒是不知道，读过一点他对中世纪经济史的论述，感觉应该还有两把刷子吧。
http://www.gregoryclark.net/
http://www.econ.ucdavis.edu/faculty/gclark/a_farewell_to_alms.html
My God grant me the serenity to accept the things I can not change,The courage to change the things I can,And the wisdom to know the difference.
欢迎“走进中世纪”http://learningsources.zhan.cn.yahoo.com