Also, the demand for diesel vehicles such as cars are price inelastic. This means that when the price changes, the demand does not change as much. In this situation, even if the government charge diesel vehicles to enter Manchester, people will still enter Manchester with their cars not resolving the pollution or congestion problem but still increasing the amount people would have to pay. If demand is price inelastic, the government may try to force the consumption to decrease by charging prices that are too high meaning many poor people may not be able to afford the extra cost, while the rich will be unaffected increasing inequality.There are other cities that have already undertaken these regulations trying to tackle the problems of congestion and pollution. “London has had air quality charging in place for some time. Its ‘low emissions zones’ already cover most of Greater London and charge between £100 and £200 a day on the most polluting lorries, motor caravans, large vans, buses and coaches. However from next April a new round-the-clock ‘ultra-low emissions zone’ will also be introduced in central London to cover all Class D vehicles From that point anyone with a more polluting diesel car – generally those registered before September 2015 – will have to pay £12.50 a day to drive into the centre of the capital. The introduction of clean air zones has been considerably easier for London than it would be for Greater Manchester, however, thanks to the underlying camera infrastructure brought in 15 years ago to operate its weekday congestion charge.