Mark昨天发的观点和我的完全一致，恒久起作用的唯供需关系和人性：Those who think it's different this time... or because someone wrote a popular book a strategy won't work anymore are out of touch with reality. Supply/demand and human nature are timeless. Stop the excuses! Mediocre performance is a result of mediocre knowledge and skill.

供需关系如何影响价格呢。难道要看看经济学供给曲线么？望指点一二。谢谢。