Once we are fed, heated, housed and healthy, our extra consumption inevitably has an element of luxury about it. And once luxury enters the scene, the practicalities are in trouble, as women who wear expensive stiletto heels can testify.
My instinct is to assume that we consumers are an inconsistent bunch. We like competition if it delivers low prices, but grumble if it delivers the bad news that prices need to go up.
Men don't know much about women. We do know when they're happy. We know when they're crying, and we know when they're pissed off. We just don't know in what order these are gonna come at us.
I rarely come away from presenting the 'Today' programme without some sense of regret. There is always some question that I should have asked, or some point that I should have made. This is annoying but not surprising. Perfection is hard to achieve in a three-hour live programme.
Interestingly, human irrationality is a hot topic in economics at the moment. Behavioural economics it's called, on the cusp of economics and psychology.
Interest rate cuts have an effect in stimulating an economy by directly or indirectly making someone, somewhere, spend more than they otherwise would. That extra spending increases demand and ensures that we all carry on with work to do, without us having to slash our prices or our wrists.
I've never enjoyed sleep as much until I got the 'Today' job. There is something about early sleep that's much better than late sleep. I feel myself going to sleep; I don't just plonk my head on the pillow. It's a sort of winding-down thing.
I actually profoundly think the world's a better place when economics is fairly boring... The more boring the better.
For me, the main principle for broadcasters has to be that if people stand to benefit from an interview, they should be prepared to face some downside as well.
But beginners to the World Economics Forum have to understand there is no single Davos experience, and there is no single Davos community either. There are numerous tribes who interact only at a minimal level.
Crossrail is a prime example of infrastructure. It is a rather deadly word, but I think it is exciting stuff, the civil engineering which makes Britain tick - the bridges, tunnels, power and water networks, which bind us together.
All socio-political phenomena in the U.K. come laden with the baggage of a class-based theory or two attached to them. In the case of gay Tories, there is one particularly silly variant of the category, which asserts that gayness is bred in public schools and thus fits with Conservatism like hand in glove.
Now I can broadcast to an audience of several million people on the 'Today' programme. I can talk about the day's news. But on radio, believe it or not, we have notes and scripts. And while we might ad lib the odd wryly amusing asides, they come at the frequency of a suburban bus. About one every 90 minutes.
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