Greed: A majority of participants reported an excessive desire for money or materials (clothes, books, &c, 68%); also non-material items (time, love, &c, 32pct)

Understanding greed as a unified construct. Glenn W. Lambie, Jaimie Stickl Haugen. Personality and Individual Differences, Volume 141, 15 April 2019, Pages 31-39, https://doi.org/10.1016/j.paid.2018.12.011

Abstract: The concept of greed is a popular topic since the economic crisis of 2008. Much of the psychological research relating to greed aligns greed as a situation-specific trait as opposed to a dispositional trait. Thus, there is a need to enhance our understanding of greed as a disposition and explore individual differences that may influence behavior. Since individuals conceptualize greed in various ways, there is a lack in understanding of the construct. We propose a unified definition of greed and outline the extant research on dispositional greed, focusing on existing greed assessments. Considering our working definition of greed, we advocate that there is a need for future research to enhance definitional clarity, including the development of an additional greed assessment that more accurately encapsulates this complex construct.