Liberal Democrats have criticised government ministers for failing to stop the so-called 'bedroom tax'.
Party members, gathered at the spring conference in Dundee, called on the coalition Government to defer the under-occupancy rules and reconsider its approach.
Former Lib Dem MSP Robert Brown led the criticism:
I hope that conference will send the clearest of messages to the Government, to Liberal Democrat ministers, that the policy is damaging and unfair.
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Mr Kim has made two recent visits to China.
The study looked at the development of 422 children over the course of eight years.
The president said they will come into force if China refuses to change its practices.