I'm very busy at the moment trying to get a web database up for my old school former pupils' society, but I noticed today a lot of discussion about Tesco and its market dominance.

Personally, I patronize the Co-op and local shops as much as possible and am in some ways fortunate to be able to do so, and I abhor monopoly and monopsony, and it is clear that Tesco, ASDA and others are getting pretty close to such a position if they haven't already. But there's a simple little step that could at a stroke force Tesco and others to account properly for some of the externalities of out of town shopping...

They currently don't pay uniform business rates on their massive free parking areas at out of town developments - a massive subsidy from town centre retailers to the big sheds. With Site Value Rating (Land Value Tax levied at a local level), with which the Lib Dems propose to replace the Uniform Business Rate, such land would be properly valued and taxed.