Open Access

Expatriate success divided into two criteria, expatriate adjustment and expatriate job performance, is analyzed in relation to extraversion and its facets. Measurements of the Big Five and scales of adjustment as well as job performance were used by interviewing a sample of 80 German, Austrian and Swiss expatriates working in Costa Rica. The overall extraversion trait, gregariousness, assertiveness, and activity show meaningful effects on expatriate job performance. By analyzing expatriate adjustment and its relationship with extraversion and corresponding facets moderate effects were found between activity and interaction adjustment. Positive emotions with interaction adjustment as well as positive emotions with general adjustment show the largest effects. Furthermore, small effects were found for activity and warmth in respect to expatriate adjustment. Finally, suggestions for further research concerning extraversion in expatriate management are given.