We examine how investor preferences and beliefs affect trading in relation to past gains and losses. The probability of selling as a function of profit is V-shaped; at short holding periods, investors are more likely to sell big losers than small ones. There is little evidence of an upward jump in selling at zero profits. These findings provide no clear indication that realization preference ex...

this was a prospective cross-sectional study of consecutive transported patients by emergency medical service (ems) to a referral hospital. the goal of this study was the evaluation of emergency medical technician intermediate prediction about their transported patients disposition in emergency department of imam khomeini hospital. 2950 patients were transported to this hospital, questionnaires...

in this paper disposition effect, selling winners and holding losers, in tehran stock exchange (tse) investment companies and its effect on these companies’ cash flows and performance using odean model has been reviewed and investigated. research findings show that the realized profit ratio is %19 higher than the realized loss ratio in all of investment companies in tse. this mean there is a be...

Why do people distrust others in social exchange? To what degree, if at all, is distrust subject to genetic influences, and thus possibly heritable, and to what degree is it nurtured by families and immediate peers who encourage young people to be vigilant and suspicious of others? Answering these questions could provide fundamental clues about the sources of individual differences in the dispo...

This paper analyses the presence of the disposition effect in the Australia equity market. We examine over 10,000 individual investor accounts at a leading local retail brokerage. Robust evidences of the disposition effect are found across all investors. We further explore the contributing factors for the observed bias by separating the sample into groups with different demographic features and...

Cooperation is a fundamental human trait but our understanding of how it functions remains incomplete. Indirect reciprocity is a particular case in point, where one-shot donations are made to unrelated beneficiaries without any guarantee of payback. Existing insights are largely from two independent perspectives: i) individual-level cognitive behaviour in decision making, and ii) identification...

the relation between ethics and human good and evil attributes and his nature is among the age-old discourses in the field of practical philosophy (wisdom). since long ago, it has been of concern to the learned and the philosophers as to whether all ethics or a part of it in all human beings or in some of them is optional and acquired or non-optional, unacquirable, and unchangeable. this writin...

BACKGROUND Many patients are admitted to acute-care hospitals when their medical needs might be more appropriately met in an extended-care facility (ECF). OBJECTIVE To describe a cohort of patients who were admitted from an emergency department to an ECF. DESIGN Observational cohort study. PARTICIPANTS 121 enrollees of Harvard Vanguard Medical Associates who were admitted directly from an...