Research Notes

IO publishes shorter papers (8000 words maximum) that are primarily empirical or that suggest a new methodology or model. They are not abbreviated research articles. In other words, they do not need to make a major original theoretical claim, or summarize in any detail the most important claims from the existing theoretical literature to which they relate. Most offer a solid empirical test of some interesting and important hypotheses that promise to stimulate future debate and research in fields important to many IO readers.