A commentator suggests that a "tolerable administration of justice" needs to incorporate "zero-tolerance of corruption." I agree about the importance of predictability, but corruption is a pretty broad concept, and is it always the most binding constraint?
Mushtaq Khan at SOAS has some great work skewering the cross-country approach to corruption and growth which dominates the literature. This chart in particular articulates that old favourite: Correlation does not necessarily mean causation.
Update: Mushtaq Khan and Daniel Kaufmann are on the next Development Drums, send your questions to Owen Barder