"People of the same trade seldom meet together, even for merriment and diversion, but the conversation ends in a conspiracy against the public, or in some contrivance to raise prices." -Adam Smith, The Wealth of Nations A legislator I know once told me that he heard a lobbyist for a trade group describe his job as helping those already on top of the building pull up the ladder so that no one else would be able to climb to the top. What he meant was that he helped this trade association get the legislature to pass laws that made it ever more difficult to become licensed in the field, thus limiting competition for his paying clients. For the incumbents in the field, this seems like an easy trade: the fee to hire the lobbyist is relatively small compared to the windfall produced by using the law to eliminate future competition. To the lobbyist’s credit, at least he was forthright about what he was being paid to do (rather than pretending that he was out to protect “p...