Tim Harford, undercover economist, provides advice to the principals of arranged marriages. He suggests that the agents pay the principals (in this case, the parents) by the results. Unfortunately, most of his answer is behind the wall of Financial Times of premium content. Oh well, maybe we wouldn't have any answer if FT didn't get something to pay Harford for his advice.

UPDATE: As if on cue, the UAE Ministry of Labour and Social Affairs publishes a study of divorce amongst nationals in the UAE.