East Midlands off the A428 in north Northampton. Butcher's Pet Care dog food (mostly own-label) is off the A428 at Crick (M1 junction 18). The crisp company Walkers (owned by PepsiCo and the UK's biggest grocery brand) makes 10 million bags of crisps a day, using 280,000 tonnes of potatoes a year, at the biggest crisp factory in the world at Beaumont Leys; next door Bradgate Bakery makes sandwiches, and nearby Walker & Sons make pies (Samworth Bros) at their Charnwood Bakery. Opposite the crisp factory at Beaumont Leys, Beaumont Park is PepsiCo's main research centre in the UK. Pork Farms is
Causes of the vote in favour of Brexit say that "in areas where there were previously few migrants, increases in immigration will have a more noticeable effect—and will be more likely to influence political behaviour" whereas ethnically diverse areas will perceive additional immigration as having little effect. They go on to explain that the non-British population of Boston in Lincolnshire became 16 times larger between 2005 and 2015, rising from 1,000 to 16,000. Boston also had the highest vote in favour of 'leave' in the UK, at just over 75% in favour of leaving the EU, which they believe is due to the effects of immigration seeming sudden