Okay, that's helpful.
Mr. Pye, you had some really practical suggestions. I was interested in your suggestion of a tax-exempt productivity bonus. We have seen where productivity bonuses, or bonuses for good work, or whatever, have been given in the public sector, but they're just kind of routinely given. They don't seem to be tied to a merit criterion. How can you make sure that such a bonus would actually be tied by employers to productivity rather than just kind of being an extra perk that benefits employers because there's a tax relief component to it?