La consultation psychanalytique a pris toute sa place dans la clinique et la transmission psychanalytiques, à côté du soin, avec l’ouverture des cliniques gratuites comme le souhaitait Freud. Le ...Centre de consultations et de traitements psychanalytiques Jean-Favreau s’est inscrit dans cette continuité. Une recherche au sein d’un groupe de pairs se poursuit depuis de nombreuses années selon les modalités d’un travail associatif groupal. Les échanges inter-analytiques à partir de séquences cliniques s’appuient sur l’écoute en second, à partir de l’institutionnalisation de la dualité consultation/traitement, et permettent l’évaluation de la pertinence des indications. La tiercéisation du dispositif, soit « le double cadre », donne son titre à l’article.
On March 23, 1989, the Exxon Valdez ran aground in Alaska's Prince William Sound and released over 250,000 barrels of crude oil, resulting in 1300 miles of oiled shoreline. The Exxon spill ignited a ...debate about the appropriate compensation for damages suffered, and among economists, a debate concerning the adequacy of methods to value public goods, particularly when the good in question has limited direct use, such as the pristine natural environment of the spill region. The efficacy of stated preference methods generally, and contingent valuation in particular, is no mere academic debate. Billions of dollars are at stake. An influential symposium appearing in this journal in 1994 provided arguments for and against the credibility of these methods, and an extensive research program published in academic journals has continued to this day. This paper assesses what occurred in this academic literature between the Exxon spill and the BP disaster. We will rely on theoretical developments, neoclassical and behavioral paradigms, empirical and experimental evidence, and a clearer elucidation of validity criteria to provide a framework for readers to ponder the question of the validity of contingent valuation and, more generally, stated preference methods. PUBLICATION ABSTRACT
We propose a framework for assessing the accuracy of nonmarket values. This involves adapting two widely-used concepts.
Reliability
addresses variance and
validity
addresses potential biases. These ...concepts are formally defined and adapted to assess the accuracy of individual nonmarket valuation studies and the potential accuracy of valuation methods. We illustrate the framework by considering, in a preliminary way, the reliability and validity of the contingent-valuation and travel-cost methods.
Contemporary Guidance for Stated Preference Studies Johnston, Robert J.; Boyle, Kevin J.; Adamowicz, Wiktor (Vic) ...
Journal of the Association of Environmental and Resource Economists,
06/2017, Letnik:
4, Številka:
2
Journal Article
Recenzirano
Odprti dostop
This article proposes contemporary best-practice recommendations for stated preference (SP) studies used to inform decision making, grounded in the accumulated body of peer-reviewed literature. These ...recommendations consider the use of SP methods to estimate both use and non-use (passive-use) values, and cover the broad SP domain, including contingent valuation and discrete choice experiments. We focus on applications to public goods in the context of the environment and human health but also consider ways in which the proposed recommendations might apply to other common areas of application. The recommendations recognize that SP results may be used and reused (benefit transfers) by governmental agencies and nongovernmental organizations, and that all such applications must be considered. The intended result is a set of guidelines for SP studies that is more comprehensive than that of the original National Oceanic and Atmospheric Administration (NOAA) Blue Ribbon Panel on contingent valuation, is more germane to contemporary applications, and reflects the two decades of research since that time. We also distinguish between practices for which accumulated research is sufficient to support recommendations and those for which greater uncertainty remains. The goal of this article is to raise the quality of SP studies used to support decision making and promote research that will further enhance the practice of these studies worldwide.
Social valuation of ecosystem services and public policy alternatives is one of the greatest challenges facing ecological economists today. Frameworks for valuing nature increasingly include ...shared/social values as a distinct category of values. However, the nature of shared/social values, as well as their relationship to other values, has not yet been clearly established and empirical evidence about the importance of shared/social values for valuation of ecosystem services is lacking. To help address these theoretical and empirical limitations, this paper outlines a framework of shared/social values across five dimensions: value concept, provider, intention, scale, and elicitation process. Along these dimensions we identify seven main, non-mutually exclusive types of shared values: transcendental, cultural/societal, communal, group, deliberated and other-regarding values, and value to society. Using a case study of a recent controversial policy on forest ownership in England, we conceptualise the dynamic interplay between shared/social and individual values. The way in which social value is assessed in neoclassical economics is discussed and critiqued, followed by consideration of the relation between shared/social values and Total Economic Value, and a review of deliberative and non-monetary methods for assessing shared/social values. We conclude with a discussion of the importance of shared/social values for decision-making.
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•Individualist valuation approaches obscure and underplay collective meanings and significance ascribed to natural environments•There is a lack of theoretical and empirical clarity on what constitutes shared and social values and how they can be assessed•We provide a theoretical framework to discriminate dimensions of shared/social values and an overview of valuation methods•A shared values approach to valuation can enhance legitimacy, effectiveness and transparency of evidence and help manage risks
In the present paper, ramification invariants of complete discrete valuation fields of prime characteristic p with imperfect residue field are studied. Using Witt vectors, ramification breaks of ...cyclic extensions of degree p.sup.2 of such a field are calculated. Necessary and sufficient conditions for a pair of natural numbers to be ramification breaks of a cyclic extension of degree p.sup.2 are obtained. Bibliography: 8 titles.
Playing at acquisitions Smit, Han T. J; Moraitis, Thras
2015., 20150118, 2015, 2015-01-18
eBook
It is widely accepted that a large proportion of acquisition strategies fail to deliver the expected value. Globalizing markets characterized by growing uncertainty, together with the advent of new ...competitors, are further complicating the task of valuing acquisitions. Too often, managers rely on flawed valuation models or their intuition and experience when making risky investment decisions, exposing their companies to potentially costly pitfalls.Playing at Acquisitionsprovides managers with a powerful methodology for designing and executing successful acquisition strategies. The book tackles the myriad executive biases that infect decision making at every stage of the acquisition process, and the inadequacy of current valuation approaches to help mitigate these biases and more realistically represent value in uncertain environments.
Bringing together the latest advances in behavioral finance, real option valuation, and game theory, this unique playbook explains how to express acquisition strategies as sets of real options, explicitly introducing uncertainty and future optionality into acquisition strategy design. It shows how to incorporate the competitive dynamics that exist in different acquisition contexts, acknowledge and even embrace uncertainty, identify the value of the real options embedded in targets, and more.
Rooted in economic theory and featuring numerous real-world case studies,Playing at Acquisitionswill enhance the ability of CEOs and their teams to derive value from their acquisition strategies, and is also an ideal resource for researchers and MBAs.
Concerns have been raised regarding the sensitivity of widely used preference-based instruments (e.g. EQ-5D) to value mental health benefits. An alternative outcome measure other than QALY is ...required due to an increasing interest in the promotion of mental well-being. The aim of this thesis is to develop preliminary U.K. preference-based valuation sets for the Short Warwick-Edinburgh Mental Wellbeing Scale (SWEMWBS), to allow estimation of Mental Well-being Adjusted Life Years (MWALYs). Given that this was the first attempt at valuing SWEMWBS states, a series of stages were followed to ensure the robustness of the derived valuation sets. Firstly, alternative valuation techniques were analysed to justify the appropriate valuation strategy for mental well-being states. A sample of manageable mental well-being states for valuation was also identified through alternative experimental designs. Next, a qualitative piloting study with the application of think-aloud interviewing technique was conducted to investigate the cognitive process of completing the valuation tasks. The modified valuation protocol informed by the qualitative study was then validated within a larger sample in a quantitative study. The valuation responses of the quantitative study were modelled to produce utility values for all mental well-being states. The qualitative and quantitative studies suggested the feasibility, practicality and face validity of the SWEMWBS valuation. A total of 225 participants provided valuation responses to allow estimation of valuation sets based on composite time trade-off (C-TTO), Discrete choice experiment (DCE) and Inverse Variance Weighting (IVW) hybrid model. The first and second models generated illuminating differences with the hybrid approach giving an arguably desirable blend of the two. The valuation sets for mental well-being states can be used for indicative cost-utility analyses of mental well-being interventions and have the potential to inform the practicality of applying the proposed valuation protocol in the full national valuation study.
In this thesis, we study several utility maximisation problems under model uncertainty, involving optimal investment, valuation and hedging. We first derived martingale distortion representations for ...classical utility maximisation problems in a non-Markovian stochastic factor model, with power, logarithmic and exponential utilities. We then study multiple priors power utility maximisation problems when the reference model is a non-Markovian stochastic factor model, and derive a BSDE representation of the value process, optimal strategy and least favourable model. We also study a variational preferences logarithmic utility maximisation problem when the reference model is a non-Markovian stochastic factor model, and when the plausible models are penalised by an additive entropic penalty function. The robust problem is transferred to a classical utility maximisation problem with a power utility whose risk aversion is dependent on the model ambiguity aversion parameter. We then fully solve the robust problem and perform numerical tests comparing several classical and robust strategies for a Stein-Stein stochastic volatility model and for a Heston model. Finally, we study robust exponential valuation and hedging problems in a basis risk model, using both the multiple priors approach and the variational preferences approach with a multiplicative penalty function. Specialising to a constant parameter basis risk model, the robust problems admit explicit or approximate solutions, thus we are able to conduct large-scale simulation based tests on performances of various pricing and hedging strategies.
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