Prozac is the most obvious fabrication. In many studies, its effect can't be distinguished from placebo (http://en.wikipedia.org/wiki/Fluoxetine#cite_note-78). Of course, if you ARE on prozac and stop taking it suddenly, you will likely get depressed (and sometimes suicidal), but that's most likely withdrawal symptoms, not a manifestation of an underlying condition.
I suspect that pharmaceutical researchers can't think of a way to mask the symptoms of Asperger's, so there is no need to list it in the DSM. Call me cynical if you like.
The correlation is especially marked in Appalachia, the lower Mississippi and the coast of the Carolinas and Georgia. What's going on here? Do poor people exercise less? I doubt it. Most poor people have physical jobs, while rich people sit in offices. I think the problem is that most poor people can't afford much beyond spaghetti, potatoes, and bread (cheap starches), whereas rich people can afford protein, butter, and vegetables.
We have to be careful about making statements about obese people's lifestyles. Usually our statements about fat people are little more than racial and class prejudice: "those people eat too much" really means "they're uncontrolled gluttons", and "those people don't get enough exercise" really means "they're lazy slobs". As long as social classes have existed, the rich and comfortable have justified their privilege by claiming that the poor are weak and immoral.
1. The time remaining until the contract expires
2. The current price of the undelying asset
3. The strike price (the contract gives its buyer the right or "option" to buy the asset at the strike price)
4. The risk-free rate of return on cash (return that could be earned by putting your money into, say, treasuries rather than stock)
5. The volatility of the underlying asset.
At the time the contract is written, the first four of these values are known (assuming of course that the risk-free rate stays constant, which is pretty close to a sure bet). The LAST value is the problem. It says how much the stock will fluctuate, between the present time and the time of expiry. This is unknown, because, after all, it requires knowledge of the future. Usually, PAST volatility is used in its place, going with the assumption that the stock will behave in the future the same way it behaved in the recent past.
If the stock suddenly becomes very quiet, and stops fluctuating, the buyer payed too much for the contract, on average. If the stock gets very wild, the buyer got a bargain, on average. In either case, the contract buyer and seller guessed wrong. They should have used a different volatility to price the option.
Of course, stock fluctuations do NOT follow a normal curve, after all. And option traders do NOT follow Black-Scholes exactly either (see "volatility smile"). But the much bigger flaw, I think, is lack of clairvoyance. The formula requires knowledge of the future.
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