I'm not very familiar with your specific fields of interest, but the "hybrid" political science/economics departments (i.e. Stanford GSB, Harvard PEG, Caltech, etc.) along with the public policy schools (Princeton WWS, Chicago Harris) probably offer what you are looking for. Graduates seem able to go on both the political science and economics job markets. Some schools, like Harvard PEG, require you to choose between political science and economics tracks, which might affect your approach to political economy and which job market to target.