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Tuesday, November 23, 2021

Watch Your Algorithms

Watched this closely, family being involved in the space,  Prices seemed odd, but were they somehow magical?   Always compare algorithm results for reasonableness.  In particular, prediction in varying contexts is always suspect. 

What Went Wrong With Zillow? A Real Estate Algorithm Derailed Its Big Bet   By The Wall Street Journal, November 19, 2021

Real estate firm Zillow Group had looked to its digital home-flipping business Zillow Offers to lead its growth in the future, but the company has acknowledged that will not happen because the unit’s underlying algorithm could not reliably predict housing prices.

That failure, the company said, was rooted in the technology's inability to understand the real estate market and predict housing prices, which are shaped by fluctuating factors like aesthetics and regional factors that influence buyers' decisions.

Zillow CEO Richard Barton admitted to shareholders that the algorithm could not accurately predict swings in home prices, and the company is closing Zillow Offers.   ....

From The Wall Street Journal   

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