1. Essays on Decisions Under Limited Attention
- Author
-
Li, Dayang, Nishimura, Hiroki1, Li, Dayang, Li, Dayang, Nishimura, Hiroki1, and Li, Dayang
- Abstract
This dissertation consists of three essays that investigate decisions under limited attention. Chapter $1$ provides an introduction for this dissertation. In Chapter 2, I study additive representations under idempotent attention. Additive representations suggest that the utility of a menu equals the sum of the utility of alternatives in it, which implicitly assumes that a decision maker (DM) has full attention. However, many theoretical and empirical studies have argued that the DM does not always pay full attention. The purpose of this paper is to extend our understanding of additive representations to the context of limited attention. Specifically, we focus on additive representations when attention rules are idempotent, which are generalizations of attention filters. We propose the characterization of additive representations under idempotent attention as well as special cases of it: additive representations under attention filter. This model can also be applied to simple cardinality-based ordering and Borda scores when the DM has limited attention.In Chapter 3, I focus on satisficing under idempotent attention. Satisficing choice pattern has been accused of a lack of cognitive ability in perceiving and analyzing alternatives. In an effort to disentangle the limitations of noticing alternatives from other factors, this paper proposes a model of satisficing under limited attention. Our focus centers on the idempotent attention rules, leading to Satisficing under Idempotent Attention (SIA). Our study provides a characterization of SIA as well as a discussion of revealed attention and preference practices. Notably, these outcomes stem from choices made on a subset of menus. The revealed attention and preference, however, remain inherently non-unique. Additionally, considering the idempotent nature of attention filters and competition filters, we also present distinctive characterizations of satisficing under these two attention rules.Chapter 4 investigates choices u
- Published
- 2024