Vegetarians pushed for stricter welfare requirements, but then did not buy the product. English people for a long time were buying Danish bacon, thinking it was higher quality. (Luckily, Danish farmers voluntarily moved to higher welfare standards, and now English bacon has got a better reputation.)
> So it's actually more effective to have low welfare requirements that are only slightly better than those abroad in order to keep prices competitive so that people buy from the farms with marginally better conditions.
I think it's better to have decent welfare standards, and then to educate consumers about the differences between local farms and distant farms. Scandals like the "horse meat in ready meals" help to educate consumers about the importance of knowing where meat is produced.
Import duties are also helpful, but there are problems with world trade organisations.
I imagine there are not that many people who want to eat meat but are happy to pay much of a premium for better conditions.
So pretty much all the demand for meat is demand for cheap meat rather than "ethical" meat. Maybe if vegetarians started eating meat but did so by creating market demand for meat produced under better conditions this would actually be a net benefit for animal welfare as some high density farming would be converted to lower density?
Seems like an odd way to go about addressing the problem.
So it's actually more effective to have low welfare requirements that are only slightly better than those abroad in order to keep prices competitive so that people buy from the farms with marginally better conditions.
The only other solution would be to impose a high import tax on meat from countries that did not meet the same standards.