Methodology

Journal reporters pieced together stockbroker records from 27 states detailing the disciplinary and employment histories of about 550,000, or 87%, of the country’s stockbrokers, over their careers. Many brokers were registered in multiple states. New York’s Office of the Attorney General didn’t provide 2014 data on customer complaints against brokers, so the analysis used the state’s complaints data from 2013. The other data in the analysis were compiled in the 2014 first half....

How we built the models that showed the designated hitter likely boosts the American League’s fortunes in interleague play. Read the full story here.

How we collected and analyzed the data behind our recent coverage of troubled stockbrokers. Read the full story here.

The Wall Street Journal series on executive trading began with a casual conversation between one of the reporters and a long-time source. Read the full story here.