Could I take your name and number, please? female essayists OFF-THE-BOOKS, there’s a rapidly growing $2 Trillion Underground Economy in the U.S,, which has doubled in the last four years, heavily populated by illegal immigrants. . S.744 does absolutely nothing to address the Underground Economy. It’s highly doubtful that many would opt for citizenship. They will still be here working off-the-books, and more will come .. More than 12% of our economy is OFF-THE-BOOKs, under the table.