As mentioned before, lengthy disclosures degrade, rather than improve decision making.
Today's example: New York City's new law requiring calorie counts on chain restaurant menu boards.Did it make a difference in what people ordered?.... only about half the respondents even noticed the calorie counts and only 15% said they influenced their choice. But the receipts told an even more dismal story: overall, people actually purchased more calories after the law went into effect.
The full study
correctly notes that the increases were not statistically significant: so a correct report should properly say that the disclosures had "no effect" rather than a "bad effect".