Mr. Maudsley, 57, spent a week meeting with brokers and viewing apartments in Recoleta and Palermo, a hip, bohemian neighborhood.

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Eric Taylor, a child psychiatrist at London's Maudsley Hospital, says that 0.3% of British children take Ritalin, compared with 6-7% in America.

ECONOMIST: Education: Behave, or else | The

Richard Maudsley, a San Diego-based real-estate investor, also is undaunted.

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It was only in 1993 when he began to be treated at the Maudsley Hospital in London with the new form of drugs, called "atypicals", that his condition, and his life, improved.

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Experts at the National Antisocial Behaviour Clinic based at London's Maudsley Hospital draw a direct line between poor parenting and a range of social problems including educational under-achievement, criminality and drug misuse.

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"You would expect a spontaneous remission rate of 10% within in a year, " said Professor Paul Salkovskis, Maudsley Hospital Centre for Anxiety Disorders, who asks whether it is safe to give people with OCD psychoactive substances at all.

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