Send us Fan Mail Recent estimates are that the United States has a shortage of housing volume of 4-7 million homes. A problem of that scale doesn’t happen overnight and involves decades of neglect and inaction. With the chronic lack of housing likely to be a major issue for the foreseeable future, public policy experts have been brainstorming about potential solutions, and a few have dusted off an idea that’s older than the Republic: a tax on the value of land without regard to the buil...