In a paperback of 1961, a new chapter was added on rent control, which had not been specifically considered in the first edition apart from government price-fixing in general.

• 在1961年版的平装本中，我加写了新的一章，探讨租金管制的问题，这个课题在第一版中并没有从一般的政府定价中拿出来单独讨论。