Economist: "You too can enjoy the benefits of Beltway capitalism"

"If the proportion of interested senators voting 'yes' exceeded the proportion of uninterested senators giving their assent, the bill was presumed to be positive for the industry in question. [and vice versa] On this basis, the authors tested a simple investment strategy that bought or shorted industries accordingly when bills were passed, and found that the portfolio would have delivered steep annualised returns"