One young couple, who have refused to be identified, have told the inquiry that officers tried to bribe them into becoming informers.

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Only when the government convinces them that it has set the economy on a course of long-term growth will it be able to lure their dollars back home without having to bribe them.

ECONOMIST: Indian bonds

But having Americans on board the bus made it easy for police to either assume the Maldonados were the smugglers, or to target them for a bribe.

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The case came to light when four men were arrested and accused of trying to bribe the victim and her boyfriend to get them to drop the case against Weberman, a spokesman for the district attorney said.

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Such lobbying expenses are the price, the extra tax, one has to pay to stop them interfering perhaps, rather than the bribe direct.

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The key is to convince them that an inducement is not really a bribe.

ECONOMIST: Schumpeter