Britons could save more than £1,100 every year if net migration is reduced, new analysis suggests. Research by the Growth Commission – which is set to be published this week – says slashing migration numbers will improve living standards over the long term. The new analysis which comes ahead of the Spring Budget also found that scrapping inheritance tax would see a larger increase in per capita GDP than an equivalent cut to income tax. Ex-Prime Minister Liz Truss launched the commission last year to investigate ways of boosting Britain’s economic growth. The study modelled a reduction in Brita…