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I'm now exploring the question of whether or not stock prices are indeed memoryless, or the stock changes.
我现在要探索一个问题那就是股价,是否真的是无记忆的，或者说股票的变化是否是无记忆性的。
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And it seems pretty obvious that at least two of the things I'm going to want are stock and market.
很明显,我至少要有的两个类是,股票和市场。
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On one level, there are things like companies that have two . different classes of stock that are economically identical.
一方面，我们有这样的例子，有的公司拥有两种,不同类别的股票，他们在经济意义上是相同的。
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And that's essentially what we saw people have more nucleus accumbens activation priority choice " they are more likely to choose that stock.
这就是我们得到的结果,在作出选择时，受试者的伏隔核活动越多,他们就越有可能选择“股票。
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Suppose there's a common resource out there, maybe it's a fish stock or maybe it's the atmosphere.
假如这里有一个可利用的公共资源,比如是个鱼群,或者是新鲜的空气
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I start $100 as the average price of the stock, what should the average price of the stock be?
我把100美元作为股票的初始平均值，你们觉得这个股价的平均值应该是多少呢？
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If the stock went up yesterday, it's more likely to go up today, than if it didn't go up yesterday.
如果股票昨天涨了，今天涨的可能性也就更大，如果昨天没涨今天也不大可能会涨。
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If people thought the stock was overpriced, well, people would have tried to sell it, and it would have come down.
如果人们觉得股票价格过高，人们就会把它卖了，价格就会下降。
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I wrote this book in 2000 right at the peak of-- fortunately right at the peak of the stock market.
我2000年写这本书的时候,当时希勒教授在书中提醒投资者注意泡沫风险 股市正处于最高点 2个月后此预言果然应验
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I'm gonna keep as part of each stock, it's history of prices, which we can initialize, well, I've initialized it as empty, but that's probably the wrong thing, right?
我会把股票的历史价格，作为每只股票的一部分，我们可以先对它的历史价格进行赋值，好了，我先给它赋了空值，但是这样做可能不对，是吗？
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I won't be able to show you what a market does unless I have stocks, but I can look at what an individual stock does without having a market.
我不会在没有股票的时候,就给你讲股市应该是怎么样的，但是我可以在没有股市的情况下,先去看单独的股票。
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It emphasizes the long run performance of the stock market, but it's really a general treatise of financial markets.
虽然这本书着重于股票长期投资,但它其实是一本关于金融市场的综合性著作
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So, there's been a number of articles that documented that stock prices tend to jump shortly after options are issued to managers.
有一些文章记载表明,在公司发给经理们股票期权之后,股票的价格往往会出现短期激涨
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Those are institutions that arrange for or manage the buying and selling of financial assets, such as the New York Stock Exchange.
经纪机构是指那些安排或,管理买卖的,金融资产的机构,比如说纽约股票交易所
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Builders were doing extremely well until a couple of years ago their stock was soaring--now all of a sudden they're in crisis.
直至前几年建造商们的表现一直非常优异,本来股票大涨,忽然就陷入了危机
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Now the brokerage industry-- The New York Stock Exchange goes back into the eighteenth century, it's very old.
经纪行业历史悠久...,纽约股票交易所历史悠久,成立于18世纪
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