He says the government is working to solve issues such as the income gap and poor housing.

VOA: standard.2010.03.24

Houses became much more expensive in California than in the rest of the country during this decade's housing boom, with the gap growing until early 2007, when most of those emigrating today would have begun to make their plans.

ECONOMIST: Emigration from California

"While not suitable for everyone, housing with care can potentially fill a gap between mainstream homes and care homes for some people with dementia, " spokeswoman Kathy Milosevic said.

BBC: Newton Abbot 'extra care' homes for dementia sufferers

National Statistician Jil Matheson said that the absence of a UK-wide official private rental index was a "key gap" in data on the housing market.

BBC: Lettings boards