My PhD project “Why do voters engage in vote trades in new democracies?” is financed by the Danish Council for Independent Research within the “Crooked politics” project. My PhD project investigates a genuine puzzle in vote buying: In theory, the secret ballot is supposed to prevent vote markets – the exchange of votes for material rewards – from operating during elections. Yet empirical evidence suggest that vote markets thrive during elections in new democracies. My research design is a case study, implemented as a new large-N survey with strategically selected survey-experiments. The case study consists of a new survey, which will be conducted during the 2016 municipal elections in South Africa.