This chapter surveys recent research about the effects of discrete emotions in politics and international relations. We first examine the appraisal theory of emotions in psychology and discuss its categorisation of contacting, distancing, attack, and rejection emotions. Next, we review Affective Intelligence Theory (AIT) and its impact on the study of political psychology. For the remainder of the chapter, we discuss the basic traits and general effects of the most important emotions in politics: anger, anxiety, contempt, disgust, enthusiasm, fear, guilt, hope, and shame. Topics from recent studies are highlighted for each emotion, including political participation, public opinion, social media, ideology, partisanship, gender, race, political extremism, nationalism/national identity, foreign policy, authoritarianism, immigration, populism, human rights, terrorism, and security studies. Finally, the chapter closes with a brief look at two group-orientated perspectives on emotions: moral emotions and collective emotions.
