"LTS" unexplained

What does "LTS" mean in the second paragraph? DavidCh0 (talk) 08:53, 29 April 2019 (UTC)

Claim of altruism model in Microeconomic Theory section is blatantly incorrect

This claim is already tagged as "citation needed" however it very clearly flies in the face of rational choice theory which underlies most mainstream neoclassical economic theories. Such an error severely undermines the credibility of the rest of the article. — Preceding unsigned comment added by 130.126.255.229 (talk) 19:08, 21 October 2019 (UTC)