Issue 4 of Volume 107 closes our first full year at the helm of the Review. We are very grateful for all of the support we have received from our colleagues in the discipline, and we are particularly thankful to everyone who submitted work to the review and to those who agreed to act as referees. We are also happy to present this final issue of the year, which includes pieces that touch on the following fundamental questions facing our discipline. How does one reconcile the tension between different levels of analysis, between holism and individualism? What better explains attitudes towards gender equality: individual-level characteristics or national political contexts? Does city size translate into greater political clout? Does experience with violence shape individual attitudes toward combatants in a civil war? Do resource rents really explain the lack of democratic accountability? How do past patterns of economic interaction explain current levels of interethnic cooperation? And what is the future of multiculturalism? These questions are only some of the issues tackled by the articles in this issue. As with any good work, the pieces in this issue of the Review should raise even more questions—and this is exactly what we believe our discipline needs, provocative articles that stimulate exciting new lines of research.