This is an interesting observation. Why do you think it is so much lower in UK Vs US? My guess: There are much less private donations in the national UK political system.
US congressional districts being an order of magnitude larger than UK constituencies probably has something to do with it. Also, there are significantly more MPs than representatives, so you have to swing more legislators to your side in the UK vs the US to get your pet policies adopted.
US congressional districts being an order of magnitude larger than UK constituencies probably has something to do with it. Also, there are significantly more MPs than representatives, so you have to swing more legislators to your side in the UK vs the US to get your pet policies adopted.
(Sources: https://en.wikipedia.org/wiki/United_States_congressional_ap... , https://en.wikipedia.org/wiki/Constituencies_of_the_Parliame... )