Disagreement is ubiquitous in society, often resulting in social conflict. Can disagreement on an issue be reduced by obtaining more information? The PI will investigate various questions related to this theme. The project beings by showing that while more information can sometimes reduce disagreement, it can also increase disagreement. The main focus is on when more information should be expected to reduce disagreement "on average".The second part of the project uses the results on disagreement to study problems in information economics.