"This paper documents the effect of Serbian public radio on the voting behavior and nationalistic anti-Serbian sentiment of Croats in Eastern Slavonia, Baranja and Western Srijem, a post-conflict region of modern Croatia on the border with Serbia. We find that the exposure to the Serbian public radio convinces some Croats to switch to voting for ultra-nationalist parties from voting to moderate nationalist party. In addition, exposure to Serbian public radio increases the incidence of ethnically-offensive graffiti on public buildings in the center of their villages. The results of a laboratory experiment confirm that Serbian public radio causes an increase in anti-Serbian sentiment among Croats. Our results indicate that foreign media can have substantial cross-border effects in countries characterized by post-conflict ethnic tensions such as Croatia. These findings are likely to apply more generally to areas of past conflict with similar languages and overlapping media markets. This suggests that peaceful relations between neighboring countries depend in part on the content of media programming, and the extent of media overlap. Hence, nation-building efforts implicit in the nationalistic content of the media (in this case, the Serbian radio) can have important spillovers on the persistence of peace between countries." (Conclusion, page 22)