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Dear Alexa, My friends and I went to the movies last weekend, and at the end of the night I realized I paid more for my popcorn, soda and candy, than I did for my actual movie ticket! Why are movie concessions stands so expensive? Please Explain! Kate Well Kate,... [read more]
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notes

May 08, 2010
High Frequency Trading (external link)

To better grasp Thursday’s sudden market plunge, watch the video explanation of high frequency trading from the “whiteboard” at marketplace.org.

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