《管子·轻重丁》
行令半年，万民听说以后，有半数以上的人家都放弃了日常事务而建仓存粮。桓公问管仲说； 这是什么原因呢？ 
行令半岁，万民闻之，舍其作业而为囷京以藏菽粟五谷者过半。桓公问管于曰： 此其何故也？ 
After half a year, more than half of the people gave up their daily affairs and built granaries to store grain after hearing about it. Duke Huan asked Guan Zhong: "What is the reason for this?"