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mk · 3107 days ago · link · · parent · post: Is the Tech Bubble Popping? Ping Pong Offers an Answer: Sales of tables rise and fall with the startups that love them
I assumed that WSJ was a being a bit tongue-in-cheek. That said, you could very well break the deal/sales into months rather than quarters and test correlation. I'd say that the biggest problem here is that the time frame is too short. Junk Charts doesn't prove a strong point with their graph by reducing the time frame. As far as seasonality, location, etc. It doesn't really matter when you are testing for correlation. Everyone knows that a reduction in pirates is highly correlated to global warming.