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Should I regard your expertise on the matter as superior to theirs? 
Rather, you should disregard metrics based on "perception" as being as reliable as reading tea leaves. Go find some data instead.
The median value of the primary residence of public representatives would be some solid data for instance.
So low-income countries or countries where houses depreciate over time are less corrupt? 
Ok but at the beginning of this discussion you insisted to me that France is much less corrupt. Should I discount your insistence, then?
You don't have to trust me. Just look at corruption scandals from the past 5 years in France and corruption scandals from the past 5 months in the US. The latter far surpass the former in gravity and scope.
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