Likewise, the proposition that rent controls reduce the supply of housing is violated under conditions of imperfect competition. And the proposition that floating exchange rates are an effective system relies on assumptions about the workings of the monetary and financial system that have proved problematic;
类似地，租金控制降低住房供给的意见在不完美竞争条件下也不成立。而浮动汇率是有效体系的意见需要依赖关于货币和金融体系运转的假设，而这些假设已被证明是有问题的；我怀疑如在今天做一个调查，支持浮动汇率的人会少得多。