EU immigrants: we massively overestimate how many EU-born people now live in the UK. On average we think EU citizens make up 15% of the total UK population (which would be around 10.5m people), when in reality it’s 5% (around 3.5m people). Those who intend to vote to leave overestimate EU immigration more: they think 20% of the UK population are EU immigrants, compared with the average guess of 10% among those who intend to vote “remain”….

Child Benefit: we massively overestimate the proportion of Child Benefit awards given to families in other European countries. The actual proportion of UK Child Benefit awards going on children living abroad in Europe is 0.3%, but 14% of us think that 30% of UK Child Benefit goes to children abroad and 23% of us think 13% does. This means that nearly 4 in 10 of us think the number of children in EU countries receiving Child Benefit from the UK is 40 to 100 times the actual level…

Inward investment from EU countries: we underestimate how much investment into the UK comes from EU countries. The average guess is that they contribute 30% of total investment into the UK, when it actually makes up almost half (48%). This perception gap is mirrored by an overestimation of investment from China, which people think makes up 19% of inward investment but actually only accounts for 1%.