How do markets also produce types of people? Explain with a paragraph (150-200 words) about the endowment effect and the paper by Apicella et al.

Market-based economies produce more people, literally. (See here (https://core-econ.org/the-economy/book/text/02.html)). But how do markets also produce types of people? Explain with a paragraph (150-200 words) about the endowment effect and the paper by Apicella et al. (2011). Then write a paragraph (150-200 words) with an explanation based on your own experience