Lawmakers have long used the tax code for purposes far beyond simply collecting revenue to fund the federal government. Through the insertion of specialized tax provisions, the tax code is used to achieve policy and political aims as well. But these special provisions come at a price: economic...

The U.S. faces tremendous short-term policy uncertainty, including about $5.4 trillion in tax increases over the next decade. These changes are set to take effect on January 1, 2013. It is unlikely that these changes will fully materialize, but what will happen is anyone's guess. Over the long...