Since most jobs involve an ad-hoc mix of tasks some of which require total concentration and no interruptions it's far better to give people the option of working in a communal environment OR working somewhere quiet.

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The smaller cartels no longer have the same concentration of power that single "drug lords" had before.

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To prove that MTBE concentrations below the EPA's threshold still made water taste terrible, Summy unearthed documents like a 1983 Shell letter detailing that water was no longer drinkable where MTBE'S concentration was 7 to 15 parts per billion.

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During the lifts, the room would go completely quiet no whoops or catcalls, just the deep silence of absolute concentration.

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Heavy concentration in the stock of a single employer with no voting or managerial rights, I wrote, sounded like a recipe for disaster.

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"Given that we had no notion really about how many would come, in what numbers and where - the concentration initially was London and the south-east and now they're moving out - I think this is just about the dynamics of the new European labour market, " he said.

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