As voters are increasingly asked to decide complex health policy questions at the ballot box, new research from the Brown School at Washington University in St. Louis finds that health care-related ballot measures draw more voters to the polls and are more likely to pass than other initiatives—but they're also especially sensitive to opposition spending by special-interest groups.

As voters are increasingly asked to decide complex health policy questions at the ballot box, new research from the Brown School at Washington University in St. Louis finds that health care-related ballot measures draw more voters to the polls and are more likely to pass than other initiatives—but they're also especially sensitive to opposition spending by special-interest groups.