The cyclical theory depends on a dearth of new investment creating a supply crunch in two,three or five years. A lot of projects are being postponed but postponement is no more than a signal to project managers to find a way of cutting costs. Many are doing exactly that.
周期性理论的依据是，新投资不足将导致两三年或五年后出现供应紧张。大量的项目已被延迟，但这对于项目经理而言，不过是要想办法削减成本的一种信号。许多项目经理目前就在这么做。
