So what&#x27;s the RIGHT amount of tax we should be paying to commercial market-makers for the privilege of trading?<p>The residential real estate market is gigantic, a demonstrably functional piece of the US economy. Maybe the stock markets should work more like the real estate market. Forget about liquidity. Who needs it? Instead, we&#x27;ll just pay <i>seven percent</i> of every transaction to an &quot;agent&quot;.