In a 1980 paper with Sanford Grossman, Stiglitz argued that there’s a paradox at the heart of efficient markets: If prices fully reflect all available information, then no one has an incentive to pay to collect that information, so the very information that makes markets “efficient” disappears.
Strings can vibrate in many different ways at once. In addition to the entire length of the string bending back and forth, the string can also vibrate in halves, in thirds, in quarters, and so on. These vibrations of string subsections are called harmonics (or overtones, or partials, they all mean the same thing.)
。关于这个话题，新收录的资料提供了深入分析
上周的原油市场，就在演绎金银和韩国股市的剧本。
Back in 2019, I started collecting all kinds of metrics about my life. Every single day for the last 3 years I tracked over 100 different data types - ranging from fitness & nutrition to social life, computer usage and weather.