They will do it as long as the home price is high relative to their construction costs.

只要房价相对建筑成本有利可图,建造商们就不会停止步伐

耶鲁公开课 - 金融市场课程节选

That, I think, is partly because the biggest single component of building costs is labor.

我想,有部分原因是因为,建筑成本的最主要构成因素就是劳动力

耶鲁公开课 - 金融市场课程节选

Since around 1980, building costs have been falling.

自1980年以来,建筑成本一直在下降

耶鲁公开课 - 金融市场课程节选

The green line is the building costs and you can see that building costs, since 1890, in real terms-- everything is corrected for inflation -have gone up a little bit since 1890, but not a whole lot.

绿线表示了建筑成本,你可以看到建筑成本,自1890年来,以实际值计算,所有的数据均进行了通胀修正,从1890年开始有一点点上涨,并非是大幅度上涨

耶鲁公开课 - 金融市场课程节选