Political competition is expected to become less particularistic as prosperity rises and a middle class emerges. But particularistic linkages persist despite rising wealth in urban Ghana. Politicians are unable to commit to campaign promises with voters who want large-scale public policies, many of whom are in the middle class. This creates incentives to avoid mobilizing many of these voters and to ignore their preferences. As a result, voters who want major public policies rather than patronage differentially refrain from participation, allowing poorer voters to dominate the electorate and party organizations. This may only reinforce politicians’ disincentives to make policy appeals, and stall the emergence of more policy-based electoral competition even as the middle class grows.