But fixed supply will become a constraining factor on economic activity.

但在经济活动中固定的供应将会成为一个约束性的因素。

And with no fixed supply of raw material, unlike stocks or bonds, bets could be almost limitless.

另外CDSs不像股票或基金，它没有固定的原材料供应，因此赌注几乎可以是无限的。

These include the fixed supply of natural resources, and the possible negative effects of industry on the natural environment.

这其中包括有限的自然资源供应和工业对环境造成的消极影响。

Rising house prices, the argument goes, are fully justified by low interest rates, rising real incomes, growing populations and a fixed supply of land.

此种观点认为，房价的上涨完全可以用低利率、实际收入增加、人口增长和数量固定的土地供应来进行合理解释。