That's $1 more than it costs now in the market, so the options are worthless unless the price of the stock goes up.

这样每股就要比市场价多花费一美元,除非股票价格增长了,否则这个期权就是没有价值的

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is two, 10% it means that if the market goes up 10% in value, the stock tends to go up 20% in value and so on.

当β值等于2时，If，β,表明若市场组合增值，股票价值就增长了20%，以此类推。

耶鲁公开课 - 金融市场课程节选