When your prospective employer offers you that job, at half what would be the going rate for anyone else -- have they hurt you?
Discriminating against people because you don't like their given name isn't a offense that's legally banned nor should it.
If someone misleads me to think that I will be payed a certain salary at a certain job and I invest resources into applying for that job, that's injustice but I don't think that's the case here.
If I want to buy a mattress at a store and they owner wants 400$ for it, I don't do the owner any injustice for offering 200$ for the mattress or even 100$. The fact that I'm a prospective buyer doesn't mean that I will pay whatever the owner of the mattress wants to have or what other people who buy mattresses are willing to pay.
It's consenting adult offering to engage with other adults in deals.
isn't an offense that's legally banned
I agree, but I don't understand the relevance. So far as I can tell, no one has been arguing here that wage discrimination of this sort should be illegal. The question is whether we should regard it as immoral.
LW readers have unusual views on many subjects. Efficient Market Hypothesis notwithstanding, many of these are probably alien to most people in finance. So it's plausible they might have implications that are not yet fully integrated into current asset prices. And if you rightfully believe something that most people do not believe, you should be able to make money off that.
Here's an example for a different group. Feminists believe that women are paid less than men for no good economic reason. If this is the case, feminists should invest in companies that hire many women, and short those which hire few women, to take advantage of the cheaper labour costs. And I can think of examples for groups like Socialists, Neoreactionaries, etc. - cases where their positive beliefs have strong implications for economic predictions. But I struggle to think of such ones for LessWrong, which is why I am asking you. Can you think of any unusual LW-type beliefs that have strong economic implications (say over the next 1-3 years)?
Wei Dai has previously commented on a similar phenomena, but I'm interested in a wider class of phenomena.