However, they may privately be looking with envy at the rest of the world's carriers, which are free to start adding ETS surcharges to their ticket prices.

ECONOMIST: Business travel

Be the envy of everyone when you turn up with your gaming notebook at your next LAN party!

ENGADGET: Gigabyte P2742G gaming laptop goes up for sale in UK, priced at ?909

While such growth would be the envy of most nations, China's economy has grown at an average rate of about 10% each year for the past 30 years.

CNN: China's economy grows 7.8% for 2012, better than expected

But there's another form of envy that is frequently overlooked and that may be just as potent, especially in a metropolis where sunlight is at a premium and it's easy to forget that one remains part of the natural world.

WSJ: Open-Air Status Symbols

Lady Randerson said that until now the Welsh had been "looking over their shoulders with envy" at the relative independence enjoyed in Scotland, as she claimed its Cardiff-based government should be allowed to borrow money to carry out its own major infrastructure projects, such as improving the M4 motorway.

BBC: Devolution in Wales debate