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21.

Introduction

Competition between French local communities to build infrastructures to attract enterprises and residents could sometimes result in irrational public spending.

Objectives

Show the influence of psychological factors and the phenomenon of escalating commitment in particular on this type of economic decision.

Method

We conducted a survey comprising four scenarios which were sent to 285 local elected representatives and we study the impact of the factors “Amount of sunk costs” and “Level of project completion” on two dependent variables, “the desire to complete the project” and “the judgment regarding the quality of the investment”. The scenarios presented a project which involve servicing a site and the construction of a road infrastructure in order to attract an enterprise.

Results

In conformity with the works of Boehne and Paese, whatever the dependent variable, the level of project completion significantly explains the escalation of commitment. The hypothesis of “sunk costs” is confirmed when the escalation of commitment is measured by the dependent variable “desire to complete the project”.

Conclusion

We have highlighted the effect of sunk costs and level of project completion on the decisions of local elected representatives, enriching the understanding of economic decision factors.  相似文献   
22.
Science communication, as a field and as a practice, is fundamentally about knowledge distribution; it is about the access to, and the sharing of knowledge. All distribution (science communication included) brings with it issues of ethics and justice. Indeed, whether science communicators acknowledge it or not, they get to decide both which knowledge is shared (by choosing which topic is communicated), and who gets access to this knowledge (by choosing which audience it is presented to). As a result, the decisions of science communicators have important implications for epistemic justice: how knowledge is distributed fairly and equitably. This paper presents an overview of issues related to epistemic justice for science communication, and argues that there are two quite distinct ways in which science communicators can be just (or unjust) in the way they distribute knowledge. Both of these paths will be considered before concluding that, at least on one of these accounts, science communication as a field and as a practice is fundamentally epistemically unjust. Possible ways to redress this injustice are suggested.  相似文献   
23.
Self-consciousness in non-communicative patients   总被引:1,自引:0,他引:1  
Laureys S  Perrin F  Brédart S 《Consciousness and cognition》2007,16(3):722-41; discussion 742-5
The clinical and para-clinical examination of residual self-consciousness in non-communicative severely brain damaged patients (i.e., coma, vegetative state and minimally conscious state) remains exceptionally challenging. Passive presentation of the patient's own name and own face are known to be effective attention-grabbing stimuli when clinically assessing consciousness at the patient's bedside. Event-related potential and functional neuroimaging studies using such self-referential stimuli are currently being used to disentangle the cognitive hierarchy of self-processing. We here review neuropsychological, neuropathological, electrophysiological and neuroimaging studies using the own name and own face paradigm obtained in conscious waking, sleep, pharmacological coma, pathological coma and related disorders of consciousness. Based on these results we discuss what we currently do and do not know about the functional significance of the neural network involved in "automatic" and "conscious" self-referential processing.  相似文献   
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We investigated the mechanisms by which concepts are learned from examples by manipulating the presentation order in which the examples were presented to subjects. We introduce the idea of a rule-based presentation order, which is a sequence that respects the internal organization of the examples within a category. We find that such an order substantially facilitates learning, as compared with previously known beneficial orders, such as a similarity-based order. We discuss this result in light of the central distinction between rule-based and similaritybased learning models.  相似文献   
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Cheng and Holyoak (1985) have proposed that people possess classes of linguistically based schemas that have an internal structure that is determined by pragmatic considerations. They found that when permission schemas (“If you want to do P, then you must do Q”) are used in the selection task, the success rate is much superior to what is usually observed. According to Cheng and Holyoak, this is due to the fact that the permission schema is defined by a set of production rules that give the same answers to problems of conditional inference as those of formal logic. In order to test this hypothesis specifically, 160 university students were given one of two tests. The first contained two sets of inferential reasoning tasks, one using a permission schema, the second using a relation of multiple causality. The second test employed the same two conditional relations, but in an appropriate context. The results indicated that subjects did better on the reasoning task with the schema of multiple causality when presented in context, but, as predicted, their performance was much worse on the inferential reasoning task with the permission schema, which generated a higher proportion of logically incorrect responses. These results suggest that contrary to what has been affirmed, permission schemas might not have a logical structure that is equivalent to conditional logic. A second experiment examined selection task performance using the same two relations in context. Performance on the permission schema was superior to that found with the relation of multiple causality. This confirmed previous results indicating that permission schemas do improve selection task performance, but also suggests that this effect is not related to understanding of conditional reasoning.  相似文献   
28.
Earlier research reported that using pictures in a fundraising request increases donations by legitimizing the solicitation. The present study tested the effectiveness of a solicitation for money made in the street when an object that legitimated the request was present or not. Male confederates asked passersby for money to buy a stamp while either holding or not holding an envelope in one hand. With a high effect-size, it was reported that the presence of the envelope increased compliance with the request. The legitimation of the request associated with the presence of the envelope is used to explain the results.  相似文献   
29.
In the present controlled experiment, we examine the influence of opposite states of mind (the "telic" vs. "paratelic" state) on mood response to a 15 min long walk at self-selected pace. Fifty-five first-year students were randomized to a telic (n = 22) or paratelic (n = 33) motivational environment. These opposed motivational environments were created using established reversal theory based procedures to induce the telic versus paratelic state. More than 90% of participants walked within a motivational state corresponding to the environment they were allocated. No significant mood changes (neither positive, nor negative) occurred pre- to postexercise in participants who walked with the telic state operative (p > .05). This has important implications when considering the use of exercise to relieve depression in clinical populations. Also, our findings shed new light on the reasons why not all individuals respond in the same way to moderate exercise. Practically, these results suggest that motivational state should be considered to optimize the mood enhancing effects of aerobic exercise.  相似文献   
30.
This study examined the relations between 8–12-year-olds’ perceived attachment security to father, academic self-concept and school performance in language mastery. One hundred and twenty two French students’ perceptions of attachment to mother and to father were explored with the Security Scale and their academic self-concept was assessed with the French adaptation of the Self Perception Profile. Students’ grade point average in language mastery was obtained from teachers and their reading performances were evaluated with a written word identification test. Attachment to father was found to be the only significant predictor, among attachment variables, of children’s grade point average in language mastery even after controling for sex, age and cognitive performance. Finally, results confirmed the mediating role of academic self-concept in the relation between attachment to father and grade point average in language mastery.  相似文献   
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