Prices were (mostly) stabilized, but with a slow, if continuous, rising trend. The market for these financial products grew over 30 years to the point that they delivered huge opportunities for immediate gain, which provided a strong incentive for market participants to play with them more and more.
这些创新被看作技术上的成功。价格（在很大程度上）得到稳定，但却似乎呈缓慢而持续上扬的趋势。这些金融产品的市场在过去30年里已经发展到了一种为短期获利提供巨大机会的程度。这就为市场参与者提供了强大的投机动力。