Confident and cautious candidates: Explaining under-representation of women in Danish municipal politics

Why are women under-represented even in democratic and egalitarian countries? Previous research considers either demand-side or supply-side explanations. We integrate both perspectives in a least-likely case for the under-representation of women, namely the municipal councils in Denmark. The data stems from a candidate choice conjoint experiment, a survey among potential candidates, and data on the actual pool of nominated candidates. On the voter demand-side, we show that there is no pro-male bias in general or in combination with other candidate traits nor that traits evaluated positively by voters appear more frequently among actual male candidates. On the supply-side, we find that women are less likely to be interested in running for political office. This is primarily because women assess their own political qualifications significantly lower than men. The under-supply of female candidates seem to drive the disparity suggesting that we should focus more on supply-side factors to overcome the gender imbalance.