Real estate transparency is the Holy Grail of internet companies like Zillow.com. The theory is that full information disclosure will lead to wiser decisions. OK, I can buy that. But what if the wiser decision is not to buy the house? Perhaps full disclosure, may actually discourage sales of homes? A radical thought? Maybe not.
Home sellers and prospective homebuyers have opposing goals. Sellers want to sell for the highest price, while buyers want to buy for the lowest possible price. It is against the seller’s self-interest to reveal anything to the buyer that would put them at an economic disadvantage. The seller will not disclose defects (except as required by law– gee, government imposed transparency– someone tell the anarchists) since defects will turn away prospective buyers. Less buyers = Less sales. This transactional inefficiency is caused by negative information. And let’s face it, most resale homes are not picture perfect.
Consider, too, the unzillowables, hidden information not found in public databases. If buyers were told about the drunken neighbors, barking dogs, and swamp odors, there will be less interested buyers. Although unzillowables are not defects in the home, this information, if disclosed, would turn away buyers. Less buyers= Less sales.
One could further argue that less buyers = less demand= higher supply (inventory)= falling prices. So, ultimately, full transparency may lead to lower prices — good for buyers, not so good for sellers.
Is More Information Better Information?
Does more information really make for a better decision? Maybe not, if you look at the studies done by psychologist Paul B. Andreassen in the late 1980s. His series of experiments with MIT business students showed that more news does not necessarily translate into better information or better decisions.
Andreassen divided students into two groups. Each group picked a selection of stocks. One group saw only the changes in the stock prices– whether they had gone up or down. The second group saw the changes in price PLUS given a constant stream of financial news that supposedly explained what was happening with each stock. Surprisingly, the less-informed group did far better than the group that was given all the news. (I’d love to see this study)
The Game of Real Estate

Maybe the real estate transaction is like a poker game– to win the hand, you don’t show your cards. Maybe clients, or their agents, ought to wear sunglasses during negotiations, just like the pros.
Or maybe it’s like the game of love. To attract a mate, you have to cover the flaws, not expose them.
Postscript: Since this post only raises the question, I’d be curious to see any research on the subject. Based on your personal experiences, what’s your opinion?
Further Reading:
Too Much Information (Fast Company) Source for Andreassen studies.
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