# Empirical Demand Curve Equation [closed]

Does anyone have any theories what the demand curve equation should generally look like based upon empirical data? If anyone needs a set of data-points, I'll be happy to provide it, but I'm hoping there's someone out there who's looked at some data sets and has an idea what the general form could be.

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Isn't it linear? You could make it exponential of course, it depends on your data. How about laws of supply and demand? –  glebovg Nov 9 '12 at 3:39
No. It's taught as linear. All empirical data I have shows it to be some sort of logarithm, but it doesn't "perfectly" fit. I've tried every variation of decay that I can find but to no avail. Considering the asymptotic nature of finance, that seems the way to go, but nothing fits, and it keeps me up at night. ;)) –  Gracchus Nov 9 '12 at 3:49
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## closed as off topic by Eric NaslundNov 9 '12 at 3:56

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## 1 Answer

According to current laws of supply and demand, in general, it is either linear or exponential. However, it does vary based on different goods. Economics is a science but it heavily relies on data and many assumptions, e.g., rationality. Also, many economists believe every human being simply wants to maximize utility, etc. If you show that the demand curve is not linear or exponential (over a long period of time) you may win the Nobel Prize.

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i should post an array of points... –  Gracchus Jul 29 at 5:15
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