TwentyFiveCents here! This article is a free topic. I have chosen to write about the biggest cash crop in AC; turnips.

Turnips are sold by the hog dubbed Joan on Sundays. You can buy turnips in bundles of 10, 50, and 100. The prices of turnips change per turnip every week.

Now, turnips act as a stock market. Your aim is to sell the turnips by Saturday that week (you can't sell turnips Sunday.) The problem is, turnips sell for varying prices each day. You want to sell them for more than you bought them! For instance, you buy a pack of ten turnips, 1 bell per turnip. Tom Nook is selling for 2 bells. Therefore, (2-1=1) you gain +1 bell for each turnip. Imagine how much money you could get! If you don't sell them by Saturday, they spoil and you waste money. Sometimes the prices spike and go to 700-800 bells per bundle! It is unknown whether the Turnip Stock Market will exist in Animal Crossing: City Folk. Random Fact: Turnips are edible.

***AC:WW Only***
There is something called a Red Turnip in this game. It has nothing to do with the Stock Market, but does involve a lengthy trade sequence.
In AC:WW they add a new type of turnip to sell; the red turnip.

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