Explain below question using Barberis et al. (1998) and Daniel et al. (1997).

a- Explain briefly both the Barberis et al. (1998) and Daniel et al. (1997) behavioral models of investor overreaction and underreaction using the relevant literature. Use at most 250 words.

b- Explain why these models conflict/do not conflict with the efficient markets hypothesis.

Use at most 150 words.