Improved Information Shock and Price Dispersion: A Natural Experiment in the Housing Market
Abstract
This research employs data from a natural experiment to assess the effect of improvedprice information shock on subsequent real estate transaction price dispersion. While transaction
data in the Israeli real estate market had never been open to the public, in 2010 an Israeli court
ordered the Israel Tax Authority to post all real estate transaction data on its website. We employ
all housing transactions in the period prior and subsequent to this event to assess its effect on
housing price dispersion. Results provide strong evidence of improved market efficiency as
indicated by a significant decrease in the dispersion of quality-adjusted prices. We further find
evidence that the information shock effect on price dispersion varies with household
characteristics in the market. Our findings support the market transparency argument for
promoting economic efficiency and equity.